[Q] downgrade mega sprint 4.4.2 modem plz ??? - Samsung Galaxy Mega

hello there , any chance to downgrade l600 modem in 4.4 , so we can use the ssu.apk to unlock this device , if i get it rooted and flash it with custom 4.2 , did this will work ??

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I need ROM for MTK6575

Hello,
I have Android MTK6575 phone , Its running on Android 2.3.6 Gingerbread , i want to upgrade it to Android 4.0 ICS
I tried to flash a new ICS ROM with SPFlashTools but it caused the mobile to brick " not powering on at all " .. and by yuweng's tutorial i Reflashed my stock ROM and got the phone working again..
Will any other ROM i put do the same ? and if the answer is no , where can i get a working ROM for the phone ?
Thanks in advance

plx help

guys im using xxUDNE4 build 4.4.2 os on my mega 6.3 9200 , i cant root it , i use to root it on 4.2 and 4.3 but now it says set kernel bit warranty and doesnt boot . i flashed the vcoreroot 2 from odin 3.7 and 3.9 but no luck . pls help

HELP

guys im using xxUDNE4 build 4.4.2 os on my mega 6.3 9200 , i cant root it , i use to root it on 4.2 and 4.3 but now it says set kernel bit warranty and doesnt boot . i flashed the vcoreroot 2 from odin 3.7 and 3.9 but no luck . pls help

[Q] After Installing Rom v4.4.2 [Samsung Galaxy S4 9500]

Dear friends I need help ..
4.4.2 After the installation of the device stuck in Samsung's main charge.
And version 4.3 it works fine
I Install In recovery Mode "Arrow Rom v16"[4.4.2] for example...
By the way previously installed 4.4 BETA and it worked
Does anyone know what is the reason ???
Please help me!
How did you install 4.4.2? Do youhave a custom recivery installed? Were you trying to flash a custom rom or stock firmware?? More details would help
Sent from my VZW LG G2
Srry
I Install In recovery Mode "Arrow Rom v16"[4.4.2] for example...
By the way previously installed 4.4 BETA and it worked
UPS
UPPPPS

WiFi problem :(

Hi guys today i get my Mega and i have one problem ... I get my mega with stock 4.4.2 (i think portugal) ROM but i Flash via Odin another stock 4.4.2 ROM (Czech [ETL]) and after ROM Reboot i cant switch on WiFi ... And help ?

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