How to: Convert F180 S/K/L to E975 – LG Optimus G

F180 S/K/L is the Korean version of E975, LG Optimus G. Both of these models have got exactly the same hardware except that F180 also supports LTE. F180’s original official firmware is great for use in Korea but for those who are using F180 in other parts of the world, and for those who aren’t Korean, it can be a pain to use F180 with official Korean firmware at times.


Just like all other Korean phones, SMS is limited to 90 characters and you will not be able to send larger texts than that. Also, there is a lot of carrier specific bloatware in the official firmware. The default dialer is also a bit unpleasant to the eyes as it displays Korean characters on every dialer key. There is also the old, famous, “Call to Korea” problem.

Those who have used any Korean smartphone previously will easily understand what I am talking about. So, converting your F180 S/K/L to E975 will get rid of all of the regional problems for you. Also, as we’ll be flashing the official E975 firmware, it will be rock-solid unlike most of the custom roms and you will also be receiving automatic updates over WiFi.


  1. Regardless of which firmware you are currently running on your F180, you will need to download and switch to the corresponding one from the list below:
    Tip: You can find your phone’s model by going to ‘Settings > About > Phone identity’ in Android.
    Warning: Make sure your phone’s battery is at least charged 80%. Don’t proceed otherwise as LG Optimus G comes with non-removable battery and thus you won’t be able to easily swap the battery if it dies in the middle of the process.
  2. It is mandatory that you factory reset your phone before proceeding. For doing so, go to ‘Settings > Privacy > Factory data reset’. Please keep in mind that doing so will wipe your phone including contacts, messages, mails, applications and all the data on your phone’s internal storage. Your phone will reboot twice. Let it boot after factory reset. Once you are on the language selection screen, power off your phone
  3. Press and hold down ‘Volume Up’ + ‘Volume Down’ and while inserting USB cable in to the phone. This will get you to S/W download mode on LG F180.
  4. Now you need to flash the firmware you downloaded earlier. Please refer to the guide here:
  5. Once the KDZ firmware is successfully flashed, your phone will reboot automatically. Once it fully boots up, go through the setup procedure and again factory reset it as you already did once.
  6. Once you are on the language selection screen, power off your phone
  7. Once again, put your phone in download mode
  8. For converting your phone to E975, we’ll be flashing this E975 Hong Kong KDZ:
  9. Follow the same procedure for flashing KDZ as you did earlier.
  10. Once the KDZ flash is successful, go through the set-up procedure. Now go to ‘Settings > Storage’ and make sure your internal storage is being listed there. If it shows “0.00 GB” there, don’t panic. Power off your phone. Once completely off, press and hold down ‘Volume Down’ + ‘Power’ buttons until the phone displays a hard reset screen. Release ‘Volume Down’ and press ‘Power’ twice for resetting your phone.
  11. Your phone will reboot once again and your phone’s internal storage will be back to normal.
  12. Now you need to root your phone. Please refer to our LG Optimus G universal rooting guide here:
  13. Once you are done with rooting process, make sure you reboot your phone at least once if it doesn’t reboot automatically.
  14. Now we will be flashing LG F180 baseband. Download your corresponding baseband backup from the list below:
  15. Unzip the downloaded archive and you will find a batch file named ‘modem-flash’ inside it. Make sure ‘USB Debugging’ is enabled on your phone and your phone is in ‘Charge only’ mode while connected to the PC. Run the ‘modem-flash’ batch file.
  16. Keep an eye on your phone screen as you will need to tap the grant permission button on SuperSU pop-up. If you miss the pop-up as it expires after 10 sec, run ‘modem-flash’ batch file again.
  17. Once the baseband has been flashed successfully, reboot your phone
  18. Congratulations! You have just converted LG F180 to LG E975.

Other E975 Firmwares

Theoretically, flashing any of the E975 firmware from the page linked below should work for you. However we have not tested with any of these and can’t guarantee your success. If you feel brave enough, you can try to flash any of these firmwares on F180:

5 Ping-/Trackbacks

  • Glen

    nice site and tutorials here. very detailed and easy to follow.

    keep up the good work sir!

  • Anh Le

    Thank you for your thorough information!

    • banjoe

      plssss help

  • Wambugu Maina

    You are sure that this works? I intend to convert my F180S mainly because another attempt to convert it messed up the baseband so now it can’t connect to the mobile network.

    • You should simply attempt to flash the F180S baseband and see if you get back your mobile network.

      • Adeel Ahmad

        Dear Sikander, I got LG f180 with English ROM. enabling mobile data, “E” for EDGE sign indicates that EDGE is enabled on my device. but when I see in the “about phone”>> Network Type…it shows GPRS.

        Please let me know that my phone has EDGE enabled or its just GPRS. Thanks

      • mani

        Kesa flash kro bahi
        Plz bahi send your cell number fr help

  • Daniele

    The link for the e975 rom is broken

    I tried with another E97510C_00.kdz but there is the 0.00 MB internal memory problem, also with the hard reset procedure

    • Sorry, seems like LG have changed their download address. I’ll update the list accordingly in a day or two.

      • Regarding the memory issue, did you fix it? Flash back to F180* KDZ and you’ll get your internal storage back if nothing else works for you.

        • AlyIdrees

          I tried the Hong Kong KDZ which I found on xda (because your link didn’t work for me). I followed your steps but I have the same problem as the guy above reported. I haven’t tried the F180L back again but I do want to convert it to E975. So can you update the link please? I can’t even use it in the debugging mode now so I couldn’t root it. Thanks in advance.

        • AlyIdrees

          Oh, and I was trying to use a European KDZ (It’s larger than 1.2GB) but I can’t seem to make the LG mobile utility work (if that’s causing the problem?). It says that I need to connect to the internet (it is connected). KDZ updater worked fine for me when I tried the Hong Kong KDZ as it was about 1.0xGB

    • Zohaib Zahid Hashmi

      C:/windows/system32/host open this file in notepad and add this at end

  • Ben Pattison

    Hey guys im really keen to try this firmware conversion, its an awesome guide that been put together. Have others found it successful or have there been a few issues? Thanks

  • hamza

    invalid sim card, sim not working
    please helpppppp, how to solve it

    • Did you flash your phone? If yes, how? And which KDZ was it?

      • Akash

        Sir i want stock KDZ for at&t optimus g e970…. i flashed e977 kdz, phone works good but no sim error… please help

        • Just_Another_Guy

          hi Hazma ,
          How did the problem of Invalid SIM card solved. Please help me

        • smartessence

          akash did u get the solution?

    • Paramesh

      i also have “Invalis Sim Card” error. please help me to solve

  • Amon

    once it converted to e975, can it use a custom e975 base rom? thanks :)

    • erycx

      Hi there! I really need to update my LG F180L firmware to E975 because of the dialing problems but mainly because of the korean ads and bloatware I get everyday. My question is why do I need to flash the first kdz with the korean firmware when I already have it? A hard reset followed by installing the HK rom, rooting and flashing baseband isn’t enough? I really want to flash it but I saw there are problems with the baseband. Did anyone managed to convert it to E975 following these steps? Thank you!

  • Abdul Sattar

    Today i am feeling much proud to be a Pakistani. Very very nice sharing Thanks a lot.

  • Sopheap

    Hi, all I am new. Can anyone tell me, if the process is successful while i found all the comment did not show about the successful and sometime met the problem.Waiting to hear from all of you?

  • logan

    thanks a lot sir.

  • Nouman Jamraiz

    The KDZ firmware was NOT RESPONDING………and now my LG-F180L is stuck in download mode…….PLEASE HELP……I JUST BOUGHT IT COUPLE OF DAYS AGO…….ALL MY MONEY WILL BE RUINED……. SIr Sikandar Hayat khan can you help……..i live in islamabad….. my phone number is 03115144760…. sms me and i ll call you………PLEASE SOMEBODY HELP ME GET MY PHONE OUT OF USB MODE…… :-(

    • Please see my contact details on the contact page and give me a call in the day time. I will try to guide you.

  • Fethi

    Hi all,

    Is f180s compatible with european network? And if not, wiil it be if I follow theis guide?

    Because, I ordered f180s, and I live in france.


  • Ariunbat Altangerel

    download KDZ from here

    • Berbert Nuñez

      bro have you downloaded your firmware to this link of yours? from philippines..and im downloading one of it now..i hope this following the steps in this blog

  • Faseeh

    i flashed e975 rom in my f180L. flashed the baseband as of the problem is weak signals and i m not able to send sms. I have flashed the stock rom for f180L. but the problem still exists! please help!!

    • Weak signals are a result of wrong baseband. Please try flashing the baseband again.

      • Faseeh

        Which baseband works fine in paksitan? I cant remember whether my cellphone was F180L , S or K . My other freinds have optimus g too!! some using K some using L and some has S …what baseband should i choose?

        • Ahmad Zulhilmi

          if u cant remember just check with your imei..tq

          • Faseeh

            well my imei and lg support tools shows that my cellphone is f180k. but when i flash K baseband..i get no signals..and when i flash L baseband i get weak signals. Flashing S baseband means no signal as well. What to do please help. I have flashed all the roms of L , K and S . get weak signals only on L :( . on flashing the other two means no signals :(

          • giulietta

            Hi, the imei check shows LG swift g f180. What model is it? thanks

  • Mussadaq Hussain Rana

    brother jab main kdz file download krne lagta hun to access denied error ajata hai main kya karun

  • Mussadaq Hussain Rana

    pls mere masle ka hal kijie

  • Mina Reda

    hi, i’m from egypt, could you please inform me which flash for firmware will help me

    • You can flash the Hong Kong open KDZ without any problems.

      • usman

        hello sikander hayat .mare pas lg f180 ha lakin ma na os ko s3 ka charger lgya to wo off ho gya ha. ab wo on nhe ho raha ma kya kro plz help me

  • tony

    thank you for this guide. i have successfully converted my lg f180l to e975 flawlessly thank you so much =)

  • ilyas

    after flashing e975 rom internal storage remains 0 i have tried hard reset many times. help plz

    • Iqbal Ali Husni

      the sqme problem with me.. help us plz..

  • Faheem

    how to revert back to f180l
    simply flash kdz of f180l?

  • Jahangir Ahmed

    dear Sikandar

    i have converted my phone and observed that my EDGE is not active , it shows G only, not E

    can you please help how to fix it?



    • Majeed Ullaha

      my LG G PRO F240K IS 3g video call not working plz hellp me

  • Suleman Hasib

    I want to enable edge on F180L, is there anyway???

  • Jahangir Ahmed

    dear how to enable EDGE? everything is ok and done, but this problem remains

    please help

  • Seramir

    Im From Brazil. I can instal E977 on my f180?

    thx very mcuh

    • Jahangir Ahmed

      you can try if you have KDZ

      • Seramir

        I Have it. Its possible brick ?

        • Jahangir Ahmed

          soft brick possible , but you may go on, if in case you get into trouble, you can download B2CAppSetup.exe from LG support website and make it factory default.

  • Seramir

    Hi im from Brazil. Can i install e977 stock room on my F180?

  • Rome

    Will the phone still have full-LTE support after converting to E975?

  • Faseeh

    well my imei and lg support tools shows that my cellphone is f180k. but
    when i flash K baseband..i get no signals..and when i flash L baseband i
    get weak signals. Flashing S baseband means no signal as well. What to
    do please help. I have flashed all the roms of L , K and S . get weak
    signals only on L :( . on flashing the other two means no signals :(

    • Cristhian

      I have the same trouble. I can’t get it work in 3g in my F180k. How can help me? I think that the f180k baseband is wrong because i used other baseband for another post and I can get it work in 2g whit full signal. Sorry for my bad english, my e-mail:

      • Simbarashe Chiridza

        hie can you give the link for that baseband you get full signal in 2g pliz, im stuck like you also tried flashing all 3 basebands no luck

    • Ahmed

      hy i ve exactly same problem
      have you solved it or not please tell me too . thanx

  • Jades Ibusca

    Can’t download country kdz files

  • Cristhian Vasquez

    invalid sim card, sim not working
    how can I fix it?

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  • FaisalHyder

    salam & hi, i’m about to buy this phone (F180L), i have downloaded tools, lg drivers , downloading F180L 20H.kdz (i don’t know why we first have to flash a E973 Canadian based KDZ….????)
    then when i start to download to HongKong KDZ, i get access denied error, i tried other site but there as well no download working. (please fix it~link) . then last thing to ask is rooting necessary???
    w/o rooting can’t we flash F180L baseband to get back wireless signals???????
    i don’t wanna root and stay 100% at stock for utter most stability.! please reply.

    (b/c when cell is rooted if by mistake anything of System files gets deleted will create a hell of problem)

    • Sohaib

      bro have u flashed ur phone ?? have few questions

      • FaisalHyder

        salam, naah yar i got AT&T version. :)

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  • Antonio Mosquera

    Can I use an E977 kdz on my F180? I’m From Venezuela and I think that one is the convenient for my phone. PLEASE REPLY. I don’t wanna make a mistake. help us.

  • Antonio Mosquera

    @Sikander3786:disqus hey!! Can I use an E977 kdz on my F180? I’m From Venezuela and I think that one is the convenient for my phone. PLEASE REPLY. I don’t wanna make a mistake. help us.

  • awais

    After conversion to e975, can kitkat based cm11 ROMs be flashed?

  • Pingback: The Official Korean Phones Thread :: Hey-They-NOT-CLONES - Page 8()

  • margulan

    i have weak signal on my phone… what should i do ? and it says service disabled.. plz help

    • Faisal Sattar

      Update your original respective baseband as S, K, or L (Baseband and Modem is same thing) signal will be fine

  • Muhammad Danish Ali

    Hong Kong KDZ link is broken kindly update it

  • Mahi

    Woow man U awesome. Perfect tutorial, now I can enjoy this beauty. I always wanted this phone. Thanks not a single trouble (F180L > E975)

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  • shan

    english rom mai convert karne k bad radio mjhe nae mil raha cell main

  • Gheorghe Bacio

    Hello! conversion procedure must be repeated when you change rom ?

    or only once ?thanks

  • Salvatore

    hi, I tried the step by step guide, but I have no more signal. I tried all three of the baseband. I f180k by imei.


    • Sarmad

      Dear friends there is a brief tutorial iN video at utube. First he rooted and installed cwm and a custom 4.1.2 english room. And cm11 anf gaps. I tried that on 3 phones it was perfect. Phone was conv erted and updated to kitkat. Room is smooth. No errors yet didnt tested 2g data. Sms working fine 160k. Search it on utube. He will show u how to do that. Watch carefully. He is quick in steps.good luck

      I willpost the link later

      • Salvatore Lo Faro

        ok, I look at it, but my problem is the signal 2g and 3g

  • Omar Khaliq

    Should i try the above method on lg f200l?

  • Anonymous

    While downloading the second KDZ file on the link above you mentioned it gives the following error,

    Access Denied

    You don’t have permission to access “” on this server

  • Perez avy

    I made the conversion and it s ok.
    But the 3G and H+ are very slow, the speed connection doesnt correspond to the 3G or H+
    Someone have a solution to have a real 3G ?
    (i had flash the modem of F180L )
    I try to flash the modem of F180S ?

  • Thiago Aparecido Rocha Gualchi

    I buying a Korean LG on ebay, and the phone is without imei. Pls help me.


  • Faisal Sattar

    Why flash the firmware two times? why not just backup your original modem partition and flash the desire kdz of e975 and restore the modem back to good signals????

    • Faisal Sattar

      I did it many time on F180 L simple as that

  • Rawf

    can i convert my optimus G e970(at&t) to international version(e975) so as to be able to get the kitkat update ?? ..answer plz !!!

    • Faisal Sattar

      I don’t think so it will be easy to do that LGOG E970 is bit different from all the other LGOG’s it have the it have the external memory option, flashing the E975 might demage the original partition detail. I not have that machine search on xda-developers to if it is possible to convert to E975 or you can just use the ported rom.

      F180* can be converted into the E975 because exact same hardware

    • Faisal Sattar

      or you can just wait few days official kitkat might come to E970 as well. ATM 22-May-2014 only F180 S and K model got the official kitkat update, even F180L not get the KK update from LG yet (however kdz file is found on LG Veit forums for L, not sure it is offical or just leaked version), Internaltion E975 also not got the KK update but hopefully soon will get

  • عمیر حفیظ مغل

    I have converted my F180L (Korean) to E975 successfully. But, I am still not able to get 3G on Ufone and also signals are getting dropped very frequently. What should I do?

    • Faisal Sattar

      Root the phone and flash the 180L baseband (Modem and baseband are same thing) for 3G after modem flash get the internet profiles 3G will work I tested it perfectly in Lahore myself

      • Faisal Sattar

        It is always better to backup your own modem when you were on the stock korean rom then using the anyother of same model because modem have link with your IMEI also

      • عمیر حفیظ مغل

        Yeah brother thanks for replying, I got it working by flashing the baseband. I was getting some problem in flashing the baseband but Al-Hamdulillah it works great now :-)

        Thanks again.

  • GM Sheikh

    I am facing a problem after conversion my korean cell in to eurpion which is that when i check update from my cell it shows that your phone is not registered yet. Plz guide me how to solve this issue if I wanna update my cell into KitKat

  • zubair stable??
    I mean em using smart phone for the first time and i want to attemt it, if there is any complexity then please tell me before.. em a bit confused!

  • jayanth

    Hii i have international version of optimus G, i want to update to 4.4 is it possible here in india it has not been released and i want to usecthe kitkat rom in my phone

  • Yahya Khurshid

    i did all what is listed and all went well
    now kitkat is released so how do i update to it or it will be updated itself when it is uploaded for its region i used hongkong region

  • Faisal Sattar

    Flash the latest 180l kitkat kdz directly it will be back to F180l simple ;)

  • Zeeshan Afzal

    All went good except GPS not working.. what could be the issue?

  • banjoe

    plsss help i cant download ,,, ,,,,e975 firmware pls help

  • Yahya Khurshid

    any idea how to convert lg optimius g pro f240 to e985
    i believe that they they have the same specs so this guide will work on it as well

  • David

    Hey I don’t know if anyone will see this. I have an F180S and I managed to get e975 4.4.2 installed. I’m not getting signal though. I’m going to try flashing the baseband for my phone and hopefully that will work. If I flash a different one (K/L) will those enable different frequencies so I could get LTE?

  • Faraz

    Salam Sikander bhai,

    I am using this phone from 1 month ..but suddenly my warid sim isn’t working on it but ufone and other sims are just working fine
    can u plz tel me whats the problem I am facing here ?
    my fone version is f180L
    and recently i upgraded from jelly bean to 4.4 kitkat (official update OTA)

    plz reply asap

    M.Faraz Kharral
    lahore, pakistan

  • Syed Aamir Hussain

    Dear Admin i have F180K with 4.4.2 i flash E795 stock rom then i root and install Baseband For F180K but i have no service … Please help

  • Rameez Jr.

    Can i get stock kitkat KDZ for converted Lg O G
    At the moment its E975 but in software update it says that your phone is not registered yet
    what to do?

  • johny

    I have lg pro f240s but when i enable sim net my sim signal disappear . Please guide me what to do . How can i use internet in this phone ? Should i flash this phone with amarican version of kitkat ? Or what ? Please …

  • Rizwan Najeeb

    Dear @Sikander3786:disqus, can you direct me to another guide for the same purpose? as most of the links in this guide are broken.

    PS: I have recently got F180L, and want to change its korean firmware to international official (E975) FW. as i am not an IT guy, i need a full and thorough step-by-step guide. please help.

  • Ali Sheir

    thanx admin

  • Malik Ali Jamil

    i converted to e975 but lost my signal try baseband and efs but not working how to bring back signals network is unknown

    • Saim Khalid

      flash the correct baseband or try different basebands may be one is correct for your device. because the baseband given in this page is also not working in my device but i downloaded baseband from another website which is working perfectly..

  • Angel From Hell

    Sir Really need your Help regarding F180 l into E975 Some of the link are not working like hongkong Frimware and LG Frimware

  • HAris

    My LG f180 has a problem, its sensor doesn’t works accelerometer and compass, if its gona solve this problem i will convert to E975 otherwise its useless for me.. im fine witih f180 can any one tell me its gona fix the sensors ???

    • Arsa

      I have the same problem. Tried to install custom ROMs but without any result.

  • jeei

    I upgraded my LG optimus e975 (rooted) using LG suit, it was successful, but the phone is asking for a password written in Korean.. Can anyone provide the password, if there is any default one. I tried my own password but it didn’t work.. please help!

    • Muhammad Ariz

      same here kindly do tell me if you have sorted that out

  • Noaman Ahmed


    I was using my F180L. I went into global roaming section and searched for networks I was clearly seeing networks 2g/3g NETWORK NAME

    Then I made sum changes in settings which I dont remember and tried telenor sim.It didnot recognize telenors sim However it works on 2g Warid Sim.But now when I search for networks It only show 2g Network name.Please help


    Noaman Ahmed

  • sher zaman

    mms nhi send ho rahe mara pas lge95 korian set ha

  • Noaman Ahmed

    Hello…Can i use 4g on F180l in Pakistan

  • salman mehmood

    Please reply. We use 1800 mhz in our country for LTE. Will changing its baseband and firmware make it work on 1800Mhz?

    • farhan

      Warid says F180L is not compatible with 4G LTE.i am unable to use 4G.anyone having solution?

      • salman mehmood

        Just the thing i am trying to do in my f180. I thing flashing our phone with the e975 KDZ and the baseband will work

      • salman mehmood

        But thats just an opinion.

  • Zohaib Zahid Hashmi

    My F180L end after trying this no imei no network if any one have f180l efs backup please provide

    • Saim Khalid

      I have efs backup but where to provide you…

  • Noaman Ahmed

    I flashed the f180l file .The flash was successfull but no lg gets stuck at u+ lte logo…any ideas?

    • Saim Khalid

      perfome a hard reset it will be all OK…

  • Mohammad Bilal

    AOA .. Sir i have lg f180l but when i insert sim it said service disable .. I flashed my cell with E97520a-EUR-xx but still sim not working .. Can u help me to get service enable ? Is your process work for that issue ?

    • Saim Khalid

      install the baseband of your previous model depending upon which it is l/k/s search the baseband for your model and flash it. i hope the problem would be solved…

  • Cool Blue

    AOA . Sir i flashed my mobile with E97520a eurpe version but i m having problem with baseband . how do i install baseband on my lgf180l .. When i start it said “demon is started succesfuly” but it don’t instal what should o do ? Plz help

    • Saim Khalid

      install the baseband of your previous model depending upon which it is l/k/s search the baseband for your model and flash it..

  • mustafeex

    Can you Please help me by showing me the way hoe to root LG f180

    • Saim Khalid

      allow usb debugging and keep the phone in mtp mode…
      install one of the following software
      1) Kingo ROOT
      2) iROOT
      after installing connect your phone with pc through data cable and give internet access to software to download necessary files and follow the procedure.
      i sure you will be succeded..

  • Hassam Ãŝįf

    Can i flash this rom using clockwork recovery ???

    • Saim Khalid

      no it needs a kdz updater or a flashing software because it is in kdz format and clockwork mod allows to install only zip files…

  • subhan

    listen, I upgrade my lg f180l and i succeed but when I restart my phone it does not restart and stuck in lg logo

    • Bartxgamer

      factory reset

    • Saim Khalid

      you should perform a hard reset by pressing volume down and power button then restart it…

  • Engr Muhammad Fasih Waheed

    Salam, I need a bit help. I followed the whole procedure but forgot to factory reset the phone before installing, now I am stuck at lg u+ logo and at 94 percent the cell phone restarts but the logo keeps loading and the update software keeps saying the update is in progress I’ve waited 15 minutes but logo doesn’t goes and condition stays the same, one thing i noticed that when the phone restarts windows says the MTP driver is not installed and in device manager it says the device cannot start… please help I bought this phone only 2 days ago

    • Saim Khalid

      factory reset is not necessary…
      complete the process till 99 it is right that phone starts at 94 but dont remove the cable untill 99 and after 99 a line comes after some time close the flashing software and press the power button till it turned off and then press volume down and poer button a hard reset screen comes now perform a hard reset and them restart it and wait for atleast 3 minutes..I hope it starts and is OK.

  • kyaw thu

    My LGF180L is Touch Screen problem although it was not fell down and don’t have any crack mark or hurt.I want to know it is firmware error or hardware error.If it is firmware,what should I do?
    If it is hardware error,Can I change F180L Touch Screen with the E975 Touch Screen.Can I change my F180L battery with E975 battery.
    Pls, advise me.
    Thanks you all for allowing me to disscuss. It is Nice site.

  • Ahmad Ali

    please tell the link from which u got full signals on 2g