yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 Q&A, Help & Troubleshooting] Pitzmans:
today i solved this problem with the help of Olberd and Chesterr

First i flashed to Generic Euro Rom from this thread

using Flashtool

then i rooted the phone using EasyRoot V8(check if your device works with it in it's current state)

then i installed SuperSU

then i installed Nut's Dual Recovery(locked) [you can probably check for a newer version and or change to an unlocked bootloader version]

then i flashed the radio drivers:

for the L50t (given to me by Olberd): Here

for the L50u (made by me using Olberd's files as a base*): Here

(put the driver zip on the root folder of the phone, restart and press the volume down button when the phone vibrates, untill the blue led lights, navigate to "flash zip.." and choose the driver zip)

now both the phone and the sim work, so far everything works fine ill update if there are any issues with the phone.

thanks everyone for your time and help!

*: take any of these 2 zip files and put your current original firmware's radio drivers - i used a root browser on the original firmware to get the radio drivers (copied them to a folder i can access normally on the phone) [search for the files you see in the zip].

NOTE : Use the drivers suitable for your phone, although they work on both phones they cause weird shutting down issues when installed on the wrong phone

Update : i checked all the links and wrote notes about EasyRoot , Nut's Duel Recovery and how to make the flashable zip file . i'm sorry but i cannot help with newer problems because i dont have this phone anymore as i posted before. i got some PMs and emails from sony support forum and im redirecting people here.

Update 2: apparently the google drive link became locked due to some google's change, so i updated the link so its downloadable again.
[Xperia Z2 Q&A, Help & Troubleshooting] coolmingli:
If your z2 is 2.2mm taller then it is the L50t China Mobile Model, The L50t uses TD LTE for 4G, the 3G is locked to China Mobile, but roaming with China Mobile Sim card is fine, it means you can only use China Mobile Sim card if you travel outside China. You can try to buy a unlock code, but only 3G will work, 4G LTE will never work unless you are in China.
[Xperia Z2 Q&A, Help & Troubleshooting] Pitzmans:
this is the l50u model of china unicom and im currently in the middle east and the my sim works on the device, i dont think you read through the whole thing :S

the device apears to be sim free since any sim i insert into it when its on the china unicom rom works, but when i flash it to other roms only the sim doesnt work
[Xperia Z2 Q&A, Help & Troubleshooting] Sango2:
Emma actually works. You need to copy the customization file when you initially extracted the zip, into the installation directory.

It was something that I actually missed too and there is a guide on Sony which tells you that. Once you copy that, Emma will work.
[Xperia Z2 Q&A, Help & Troubleshooting] banjo67xxx:
Have you found an uncensored firmware which works on the L50U yet?

BTW, its not the SIM that is disabled, its the whole GSM/UMTS/LTE radio functionality that gets disabled. My phone keeps telling me its in Airplane mode when its not. Also its confused about where the covers are for SIM/charger/microSD and keeps telling me I've left one open when I haven't.

Does anyone have the blob_fs files from C:\Program Files (x86)\Sony Mobile\Update Service\db\13740270\blob_fs starting FILE_ which you would get if you upgraded a real model D6503 to 17.1.1.A.0.402 as I'd like to try rebuilding the FTF but specifying model L50U in the build process to see if that would work?

If you have the blob_fs files for building the Generic FTF, then please post them here?

TIA
[Xperia Z2 Q&A, Help & Troubleshooting] Pitzmans:
yea, the sim is unlocked by all means but it wont work on any other rom (i flashed a few : RU and UK unbranded ) both work fine except the SIM. (as far as i noticed everything else worked fine)

i posted on sony's support forum and got no help really.

also posted Here but nobody could help me

i got the "official" rom for l50u from when i updated it, i just have really bad upload rate and i saw no interest in it - i can upload it for you but it may take some time.(i also still has the FILEs )

i also tried flashing combination of roms (excluding things on the list) but that didn't work, and the new easy easy root didn't work on the l50u as well

i figured the only thing i could do is customize a rom like CyanogenMod using this? (their link is broken but if you change "other" to "copylefts" it works)

but i currently don't have the knowledge and more importantly the time and patience : |

a friend also took it to an official sony retailer but he couldn't do anything about it and also said the warranty is voided as i unlocked the boot loader before there was a way to back up the drm keys)

so tell me what you think and need from me and ill upload it for you.

thanks for your time and have a great weekend.
[Xperia Z2 Q&A, Help & Troubleshooting] boy1991:
I am having the same issue with l50t phone, I was unable to get google apps to work on the china rom, and reading the forms they say it needed to be rooted to make changes to the host file.

I use doomlords "Z2_DooMLoRD_AdvStkKernel_FW-438-v05" after unlocking the bootloader, but that stopped my wifi from working. Mobile network still worked though.

Then I tried using cyanogenmod but had no service.

Finally I flashed it using "Canada - unbranded - 1281-9709" (I didn't back up the original) and still no service.

I have checked the IMEI number and it is still there.

Have you or anyone out there have an answer? Please and thank you
[Xperia Z2 Q&A, Help & Troubleshooting] banjo67xxx:
Unfortunately, I need help from those millions of people with a standard D6503 model, not us few who have the L50u and L50t models.

*YOU* reading this with a D6503 model - Please can you go to re-upgrade your working 17.1.1.A.0.402 firmware (no need to go ahead with the upgrade in reality) and send us the blob_fs files from C:\Program Files (x86)\Sony Mobile\Update Service\db ?

I'd really like to know if Flashtool can decrypt your D6503 blob_fs files and make a working L50u FTF from them.

Thanks.
[Xperia Z2 Q&A, Help & Troubleshooting] boy1991:
Maybe someone can help me get going to get the SIM working.

What I've found is that the radio is turned off.

Dialed *#*#4636#*#*, but am unable to turn on the radio or select radio band (get "set [usa band] unsuccessful")

Also could not select preferred network type. I also can't change this under network mode in mobile network settings.

Please help me to figure how I can get network service.
[Xperia Z2 Q&A, Help & Troubleshooting] Pitzmans:
Bump - problem solved [so far]
[Xperia Z2 Q&A, Help & Troubleshooting] banjo67xxx:
Hi Pitzmans, how did you solve it?

Have you got the radio to work with a non-Chinese flash? or have you found a way to unlock the Chinese OS so we can get apps from Google Play store?

TIA Banjo
[Xperia Z2 Q&A, Help & Troubleshooting] Pitzmans:
its all in the first post, i updated it
[Xperia Z2 Q&A, Help & Troubleshooting] boy1991:
does this method get google play services to work? are there any issues?
[Xperia Z2 Q&A, Help & Troubleshooting] Pitzmans:
well yes, you can read the issue i had in the quote on the first post.

when i flashed to other roms Google services worked (search, gmail, play store and i guess the rest too but i don't use them) but the sim did not.

so this method flashes a stock rom and installs the radios drivers basically.
[Xperia Z2 Q&A, Help & Troubleshooting] derrickhjk:
Help needed !

Hi, I have the same problem as you. I follow your instructions to flash but it says "drivers need to be installed". See attached picture. I am using windows 8.1.
[Xperia Z2 Q&A, Help & Troubleshooting] Pitzmans:
you need to install drivers for your device :

http://xdaforums.com/showthread.php?t=2635830

install the fastboot and flashtool drivers along with the z2 drivers

i will post the original l50u radio drivers tommorow or later today so if you got the l50u model you should wait.
[Xperia Z2 Q&A, Help & Troubleshooting] derrickhjk:
Hi. I manage to install and flash successfully. But now I have another problem. My phone now is unable to have any signals. I am using China UniCom SIM card. I guess I need the L50U radio drivers files. And also instructions on how to flash the radio drivers files. Thanks.
[Xperia Z2 Q&A, Help & Troubleshooting] Pitzmans:
this is quite unrelated, it seem like this is a windows 8 issue, try this solution :

http://xdaforums.com/showpost.php?p=35386496&postcount=21

First post updated, added L50u drivers.
[Xperia Z2 Q&A, Help & Troubleshooting] derrickhjk:
Hi, The phone works OK.... now able to access to play store, gmail, facebook, youtube, etc.....working perfectly except that it does not have any radio signals except WiFi..... must I install the L50U radio drivers ??? Please provide instructions on how to flash the L50U radio drivers..... Thanks....
[Xperia Z2 Q&A, Help & Troubleshooting] Pitzmans:
check the first post of the thread
[Xperia Z2 Q&A, Help & Troubleshooting] derrickhjk:
Thanks. I got my phone working again....:)
[Xperia Z2 Q&A, Help & Troubleshooting] Pitzmans:
this phone belonged to my brother. he no longer has it so i wont be able to do anything else about it anymore

if any of the links are broken, tell me and ill fix it

thanks for your time :)
[Xperia Z2 Q&A, Help & Troubleshooting] mymymoamoa:
OK

Hey guys!

Have another information about converting L50t to D6503 in the fw 17.1.2.A.0.314?

Did you have a trouble when you convert L50u to D6503 17.1.1.A.0.402?

:laugh:
[Xperia Z2 Q&A, Help & Troubleshooting] zingo7:
Question!

When done all as described in first post- does the L50u modem driver overwrites the details about the phone? Because in settings - About phone it says its the L50u model with 17.1.F.0.60 even in Software info (*#*#7378423#*#*) this is the same- however its 17.1.2.A.0.314 (the ROM used), as everything seem to work normal(google, facebook, youtube etc.)

Before flashing the modem driver it showed the correct 17.1.2.A.0.314 & D6503 information.

So this is a bug or this can be a problem in future when Sony launches firmware update?
[Xperia Z2 Q&A, Help & Troubleshooting] mochabene:
The same thing has happened to me.

I had also flashed the D6503 Generic/unbranded firmware 17.1.2.A.0.314.

After I flashed the L50u modem in recovery mode, this reverted back to 17.1.F.0.60

Also, another problem, after flashing the L50u from the first post, I still get signal intermittent problems (it cuts off once in a while and comes back on in a short time, this is not frequent but it happens from time to time)

Anyone have a fix?
[Xperia Z2 Q&A, Help & Troubleshooting] aminu241:
i can't flash the radio drivers on the phone

please help i have flashed the Uk generic rom on the phone but i have no idea how to flash the radio drivers
[Xperia Z2 Q&A, Help & Troubleshooting] mochabene:
have you rooted and installed a custom recovery?

all the links are provided in the first post.

once you have a custom recovery, you can flash any flashable zips that you want to test.
[Xperia Z2 Q&A, Help & Troubleshooting] mymymoamoa:
I done convert L50t to D6503 with android 4.4.2. Do you have solution convert to D6503 in 4.4.4?:victory::victory::victory:
[Xperia Z2 Q&A, Help & Troubleshooting] lbt05:
I installed RU firmware

I installed RU firmware .

Sim card is fine and I can make calls now but the 3G network is lost.... and have no clue why.

my phone is china Unicom l50u.

# flashed to Generic UK version.

I check the Service info -> Configuration , and saw working bands/s: GSM_850,GSM_900,GSM_1800,GSM_1900,UMTS_BC1,UMTS_BC2,UMTS_BC8,LTE_BC1,LTE_BC3,LTE_BC41.

but still 3G network is not there and 2G network is gone.

################### update

it's solved by setting the APN configuration and restart the cellphone :fingers-crossed:

#################### update

After serval days , I found the telephone signal is not very stable... always have 1 sec signal lost and I'm not sure it's software issue or hardware...
[Xperia Z2 Q&A, Help & Troubleshooting] vkturker:
hi everybody;

even if i've followed all the steps, i couldnt be able to take the phone to recovery mode. google play works unfortunately sim card not. when i try to install dual recovery every time after the phone reboots it turns to main screen. sony icon, xperia icon and main screen . anybody help me?
[Xperia Z2 Q&A, Help & Troubleshooting] Fan79:
Enabling sim on L50T

Hi Pitzmans , thanks for your useful information and support for those of us using L50u and L50T Z2s. Having followed your instructions, I'm having some difficulties with some of the steps. I have an Xperia Z2, L50T, I've flashed it with a generic HK rom, "D6503", 17.1.1.A.0.402 due to Google services and apps not working on the original L50T stock rom. The flash of the generic HK rom was successful and Google play store and apps all worked fine, but still no sim card ability. I rooted the phone with EasyRootTool, installed SuperSU, then Nut's Dual Recovery(locked). First issue I encountered was that SuperSU's binary was not able to be updated and installed, kept telling me to reboot and try again, second issue was that I couldn't copy the L50T radio driver into the root folder due to system files being read only, I tried to make the system files read and write by use of ES file explorer and Root Explorer Pro, but to no avail. Lastly, each time I tried to flash the radio drivers by pressing the volume button down while restarting the phone, it would only be restarted into "safe mode", unless I'm doing it totally wrong, I can't seem to enter this stage.

I'm quite familiar with flashing roms, but relatively new to flashing and installing from zip files . Hope you can offer some light on the issues I'm facing or if you could tell me where I'm going wrong, I'd really appreciate it as I'm just wanting my UK sim card to work on my L50T my girlfriend sent me from China as a birthday gift.

Many thanks! Fan .
[Xperia Z2 Q&A, Help & Troubleshooting] aamszia:
how to install Nut's Dual Recovery(locked)

I rooted the phone but how to install recovery ?
[Xperia Z2 Q&A, Help & Troubleshooting] kid1143:
Solution for build number 23.0.1.A.0.167

Hi, I recently update my Z2 l50u to 23.0.1.A.0.167 build. I tried your modem file for l50u but it doesnt work. May I ask if the file also work for 23.0.1.A.0.167 as well please. thank you so much
[Xperia Z2 Q&A, Help & Troubleshooting] Pitzmans:
Updated first post
[Xperia Z2 Q&A, Help & Troubleshooting] t-mobile_mda:
hi alla and post starter..

i have the same pb and i didnt install the recovrery..? how can i install it..? actually i did but not enter to recovery mode..

adb devices

adb reboot bootloader

fastboot devices

fastboot erase cache

fastboot flash recovery Z2_DooMLoRD_AdvStkKernel_FW-4.4.2_17.1.A.2.36.img

everything well done but not enter to recovery mode by key combination or with apk...

---------- Post added at 10:26 AM ---------- Previous post was at 09:59 AM ----------

i solved it.. :)

there is one click recovery method..

http://nut.xperia-files.com/?dlid=WjItbG9ja2VkZHVhbHJlY292ZXJ5Mi43LjE1NC1CRVRBLmluc3RhbGxlci56aXA=
[Xperia Z2 Q&A, Help & Troubleshooting] Eric_cn:
Today I tried to use .167 firmware, everything was fine except data connection and signal. when turn off data connection, signal and WiFi are good. but when turn on data connection, got problem. pls help, thanks.
[Xperia Z2 Q&A, Help & Troubleshooting] Eric_cn:
As you said, I boot into twrp recovery, and didn't find root folder, only supersu folder. what should I do, bro？
[Xperia Z2 Q&A, Help & Troubleshooting] Eric_cn:
I solved this problem. hehe
[Xperia Z2 Q&A, Help & Troubleshooting] pramodppd:
My phone doesnt have network manager.... plz help to solve it
[Xperia Z2 Q&A, Help & Troubleshooting] shubham_shub:
SIM Not Working On L50u

Hey

I bought a Sony Xperia Z2 L50u Unlocked from China.

Phone's Details :

CV: 1285-4242_R13A

Model :L50u

FW: 17.1.f.0.60

Brand :China Unicom

The phone was network unlocked and my sim was working perfectly fine on it. The only thing was that the device was not installed with any google services & I was only able to download apps with sony select.

I flashed an Indian Firmware version 23.0.1.A.0.167 with Sony Flashtool. As the rom Installed everything worked fine except the phone was network locked :( and no sim was working on it. Again I flashed a Taiwan firmware 17.1.2.A.0.314 still the problem remains the same.

Another problem is that now I'm not even able to get into recovery mode. The phone just start up without any LED Notification. Thus cannot install any other rom on it and also cannot unlock the bootloader.

Please Please Please provide me with the solution I don't want to ruin this phone, its expensive. Please Help!
[Xperia Z2 Q&A, Help & Troubleshooting] wilford321:
any updates on this issue? i have tried various methods and pitzmans as well, while on pitzmans method it work for a day, after that it reverts back to no service again..

also tried the resurrection remix mod, still no luck with the signal

What ive found out is that whenever i go into phone information and look up to GSM service, "the radio is off" and I couldnt find a way to turn it on.
[Xperia Z2 Q&A, Help & Troubleshooting] Jay Cruz:
how can u fix ? mine is not working the signal -_-

how can u fix ? mine is not working the signal -_-
[Xperia Z2 Q&A, Help & Troubleshooting] bhupender kaushik4444:
i have the same problam when turn on data signal gose come gose come can you tall me how you slove this problam
[Xperia Z2 Q&A, Help & Troubleshooting] cnteddybear:
Hi, I'm very glad to read the thread, I have same problem.

I wonder which rom you used.

First i flashed to Generic Euro Rom from this thread

Thank you

In addtion:

(put the driver zip on the root folder of the phone, restart and press the volume down button when the phone vibrates, untill the blue led lights, navigate to "flash zip.." and choose the driver zip)

I tried to put the L50u Modems.zip on root(is it /root or /?) by RE, and after reboot, no L50u Modems.zip

was found on /and could not find /root.

so I put it on sdcard and installed the zip, the phone start-up repeatly on sony logo.
[Verizon Samsung Galaxy S 4] prichm1992:
I have the us cellular version, but since it's CDMA, I figured to post here. I'm on stock 4.4.2 and I was wondering if I could root without a PC? I ask because I don't have power
[Verizon Samsung Galaxy S 4] joshm.1219:
No you can't

Translated from Calligraphy
[Verizon Samsung Galaxy S 4] Surge1223:
Get some juice bro
[Verizon Samsung Galaxy S 4] prichm1992:
Heh.. Here in about $700 on minimum wage, you bet your biscuits I will
[Galaxy S III Mini Android Development] tenshi_xp:
PAC-ROM is built with our own tweaks and options, including picks and features from the best ROMs out there!

Why choose among ROMs, when you have All-in-One !!

* By flashing this, you automatically void your warranty!

* If your phone breaks, blows up or runs away from you, do not cry to us!

* Do not ask for ETAs!!

​

* Download the ROM and GApps

* Reboot to recovery

* Wipe data/factory reset

* Flash the ROM and then GApps

* Reboot your phone

* Enjoy

​

* Download the latest version

* Reboot to recovery

* Flash the ROM

* Wipe both dalvik cache and cache

* Reboot your phone

* Enjoy the latest version of PAC-ROM

​

NFC, and maybe other things

​

* Kernel Source

* Device Tree

​

* PAC-man ROM

* KitKat GApps PA

* KitKat GApps CM

* KitKat GApps Light

​

* PAC-ROM Sharing Policy

* PAC-ROM Site

* PAC-ROM Forum

* PAC-ROM Gerrit

* PAC-ROM Changelog

* PAC-ROM JENKINS

* PAC-ROM Bug Reports/Feature Requests

* PAC-ROM Github

* PAC-ROM Stats

* PAC-ROM Google+

* PAC-ROM Facebook

* PAC-ROM Twitter

* Want to become a device Maintainer for PAC-ROM?

* PAC-ROM Central - Questions and Features broken down and seen by all PAC Devs on XDA

​

* Cyanogen Team

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* Special thanks to all our Build Bot Providers (see Contributors list for all names)

* PAC Graphix Team - Graphics, logos and images (see Contributors list for all names)

* @marcin1147 , [MENTION=234316]new[/MENTION] maclaw , NovaFusion team

* @golden-guy [MENTION=1140710]tEaM[/MENTION] Canjica [MENTION=4576707]Ryuinferno[/MENTION] [MENTION=2645562]sylentprofet[/MENTION] [MENTION=4699427]iurnait[/MENTION]

* And of course, thank you for your love and support!

​

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[Galaxy S III Mini Android Development] tenshi_xp:
Downloads Info​

4.4.2

pac_golden_4.4.2.Beta-1.0_20140604-231804.zip last 4.4.2 version

4.4.3

pac_golden_4.4.3.Beta-1.0_20140607-220249.zip initial 4.4.3 version

pac_golden_4.4.3.Beta-1.0_20140614-235504.zip Changelog Notes

4.4.4

pac_golden_4.4.4.Beta-1.0_20140621-104211.zip Changelog Notes

pac_golden_4.4.4.Beta-1.0_20140629-170417.zip Changelog Notes

pac_golden_4.4.4.Beta-1.0_20140706-065228.zip Changelog and Notes MD5: 5dc98af177fb0fa0a56e2625f3af874b

pac_golden_4.4.4.Beta-1.0_20140713-181444.zip Changelog and Notes MD5: 5d28120e555f8ac910fcb76ee187d99f

pac_golden_4.4.4.Beta-1.0_20140723-105242.zip Changelog and Notes MD5: de096b383d82d6fbeb020783ac080e81

pac_golden_4.4.4.Beta-1.0_20140804-aroma.zip Changelog and Notes MD5: F8ABD7BCA5F82982EEC445A09AECE50F

pac_golden_4.4.4.Beta-1.0_20140817-aroma.zip Changelog and Notes MD5: 12D7D9B221B215660CD5B5ED3724D3C2

RC-1

pac_golden_4.4.4.RC-1_20140824-aroma.zip Changelog and Notes MD5: C106AF76002B8E5206A20B887856629C

pac_golden_4.4.4.RC-1_20140831-aroma.zip Changelog and Notes MD5: 88638ED2F2C40F54A73251DAB1D417FE

pac_golden_4.4.4.RC-1_20140909-aroma.zip Changelog and Notes MD5: 652EF1722AF080F528070AD794C5403B

pac_golden_4.4.4.RC-1_20140915-aroma.zip Changelog and Notes MD5: ffe5acb81a777c9694b2e647f2b11edc

pac_golden_4.4.4.RC-1_20140921-aroma.zip Changelog and Notes MD5: ff19ab8278f71b609545b8824ec51e06

pac_golden_4.4.4.RC-1_20140928-aroma.zip Changelog and Notes MD5: 98372b1bb6f8d4381794c7ed080281a7

pac_golden_4.4.4.RC-1_20141005-aroma.zip Changelog and Notes MD5: 6511dd78be1b96e6d36b141fbe3c8ed0

RC-2

pac_golden_4.4.4.RC-2_20141012-aroma.zip Changelog and Notes MD5: a1f3af3aa77cdfd464ee300e24a2e2cc

pac_golden_4.4.4.RC-2_20141021-aroma.zip Changelog and Notes MD5: f8533df9580006137595471c13b2dfb4

pac_golden_4.4.4.RC-2_20141026-aroma.zip Changelog and Notes MD5:

RC-3

pac_golden_KK.RC-3.dev_20141109-aroma.zip Changelog and Notes MD5: 04118b6d7dca04af31c8a8600dcc139e

pac_golden_KK.RC-3.dev_20141123-aroma.zip Changelog and Notes MD5: 261572D7B140AFE7D50AFCE88E520A83

pac_golden_KK.RC-3.dev_20141209-aroma.zip Changelog and Notes MD5: 941EAB75855D9AE6E2D7B41DF0D8388E

pac_golden_KK.RC-3.dev_20141214-aroma.zip Changelog and Notes MD5: 3B88E3A26DC5BE637B10FF35CA6B8B2A

Release

pac_golden_KK.RELEASE.dev_20150104-aroma.zip Changelog and Notes MD5: 949513487D43701F7E41EBBA540218D9
[Galaxy S III Mini Android Development] barisdoqan:
fine look.. thanks to work
[Galaxy S III Mini Android Development] mauam:
Excellent:cool: Keep up mate:good:
[Galaxy S III Mini Android Development] fafa77140:
For a beta this rom is cool because is no laggy and I like his bootanimation :laugh:
[Galaxy S III Mini Android Development] KingGehl:
First impression is good, need to test a bit more but haven't found issues yet.
[Galaxy S III Mini Android Development] limyuyang:
Looking great. :cyclops::good:
[Galaxy S III Mini Android Development] tenshi_xp:
No, this only for i8190x versions, AT&T version(SM-G730A) is not supported
[Galaxy S III Mini Android Development] penreturns:
So far everythings is good!
[Galaxy S III Mini Android Development] equilibriojh:
battery drains?

What can you tell me about battery?