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Can't Flash any custom ROM to a friends G2! (Sprint - Stock ZVC)

OP Whiplashh

8th July 2014, 11:12 PM   |  #1  
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Hello everyone, I need a little help.

I already posted this in the sprint section, but couldn't get much help there, and did not know if this was a problem with a lot of G2. If anyone could shed any light on this, I would appriciate it very much!

Now I am not new to the rooting ordeal. I have been rooting ever since my old EVO 4G (yes, with those dreaded boot loaders.) My personal phone is running Paranoid Android RC2 (Optimus G) so I know about the standard wiping process for ROMs.

I have successfully rooted my friends G2 (Sprint) and I had TWRP on it, but the TWRP failed to make backups, so now I have Philz Touch (the custom CWM) on it and it backups fine.

My problem is when I try to flash a custom AOSP ROM, the phone only boots to the LG logo. My friend really wants Cyanogenmod on his phone but it refuses to boot. I have searched for an answer but have no idea. This is the first time I have been truly stumped. Other times after some work I figured it out but this one I do not get. Here are all the details:

Sprint LG G2 (LS980)
Kitkat Modem/Update (stock 4.4.2)
Stock ZVC
Rooted by the Autorec.apk. Root works just fine.
Philz touch recovery.
I have even found an AOSP modem you can flash in recovery, but that was no dice. Even messed up the backup on Philz and it wouldn't get past sprint screen until I flashed KK modem.
I have tried many different nightlys/Msnapshots and Mahdi ROM and it won't boot.

Is there something I am missing?
Thanks again for any help guys
9th July 2014, 06:11 AM   |  #2  
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Quote:
Originally Posted by Whiplashh

Hello everyone, I need a little help.

I already posted this in the sprint section, but couldn't get much help there, and did not know if this was a problem with a lot of G2. If anyone could shed any light on this, I would appriciate it very much!

Now I am not new to the rooting ordeal. I have been rooting ever since my old EVO 4G (yes, with those dreaded boot loaders.) My personal phone is running Paranoid Android RC2 (Optimus G) so I know about the standard wiping process for ROMs.

I have successfully rooted my friends G2 (Sprint) and I had TWRP on it, but the TWRP failed to make backups, so now I have Philz Touch (the custom CWM) on it and it backups fine.

My problem is when I try to flash a custom AOSP ROM, the phone only boots to the LG logo. My friend really wants Cyanogenmod on his phone but it refuses to boot. I have searched for an answer but have no idea. This is the first time I have been truly stumped. Other times after some work I figured it out but this one I do not get. Here are all the details:

Sprint LG G2 (LS980)
Kitkat Modem/Update (stock 4.4.2)
Stock ZVC
Rooted by the Autorec.apk. Root works just fine.
Philz touch recovery.
I have even found an AOSP modem you can flash in recovery, but that was no dice. Even messed up the backup on Philz and it wouldn't get past sprint screen until I flashed KK modem.
I have tried many different nightlys/Msnapshots and Mahdi ROM and it won't boot.

Is there something I am missing?
Thanks again for any help guys



Flash the modem for the ZV8 release and you will be good to boot CM. I flashed CM11 a couple weeks ago and ran into the same thing. As soon as I flashed the ZV8 modem, CM booted right up. When going back to a ZVC build, you'll need to flash the ZVC modem. That includes a backup. You can find the needed modem zips in this thread http://forum.xda-developers.com/show....php?t=2451426. Also, CM just released a snapshot (stable) version today so if that's not what you have to flash, go get it.
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