Unlock AT&T LG G5 (H820) - GSM-Forum

ForMartha · 04-21-2017, 17:09

Hi,
I'm trying to find a way to unlock AT&Ts G5 bootloader and flash custom roms and gain root.

I attached my original message posted in other forum - could someone help me understand if I'm right with my idea?

----------
Well, I got some idea that might work - but, maybe someone will prove me wrong.

While searching around for methods to unlock the boot-loader for AT&T varient, I came across lots of information about bricked phones. A method that had been proposed there, is to use some device that have JTAG protocol in order to revive the phone.
Digging around the JTAG subject, I found out that it's basicly an interface that have the ability to write new bootloader and pushing new .kdz images.
So, with using some common sense, it might be, that AT&Ts owners could use this method in order to flash the european bootloader into their system and bypassing this whole signed bootloader issue. after that, flashing a new european .kdz file will support this new bootloader that will transform the phone to EU modle.
Only thing is the IMEI and other modem related drivers needs to be taken in consideration.

What do you think about it?

P.S - I'm trying to get in touch with some JTAG box that might give a clearer picture about this subject.

04-21-2017, 17:09	#1 (permalink)
ForMartha Junior Member Join Date: Apr 2017 Posts: 1 Member: 2709139 Status: Offline Thanks Meter: 0	Unlock AT&T LG G5 (H820) Hi, I'm trying to find a way to unlock AT&Ts G5 bootloader and flash custom roms and gain root. I attached my original message posted in other forum - could someone help me understand if I'm right with my idea? ---------- Well, I got some idea that might work - but, maybe someone will prove me wrong. While searching around for methods to unlock the boot-loader for AT&T varient, I came across lots of information about bricked phones. A method that had been proposed there, is to use some device that have JTAG protocol in order to revive the phone. Digging around the JTAG subject, I found out that it's basicly an interface that have the ability to write new bootloader and pushing new .kdz images. So, with using some common sense, it might be, that AT&Ts owners could use this method in order to flash the european bootloader into their system and bypassing this whole signed bootloader issue. after that, flashing a new european .kdz file will support this new bootloader that will transform the phone to EU modle. Only thing is the IMEI and other modem related drivers needs to be taken in consideration. What do you think about it? P.S - I'm trying to get in touch with some JTAG box that might give a clearer picture about this subject.