[G2 Android Development] impactor:
I need some help. I bricked my phone but this time I am unable to unbrick it.

I recently got a new F320L. I flashed it with CloudyG2 3.3 and it was working fine for a day, but I decided I don’t like lollipop so I wanted to downgrade to CloudyG2 2.2 KitKat.

Here’s what I did:

1.Installed and run AutoRec f320L apk. I figured that since this is KitKat recovery installer, it will downgrade the bootstack. By omission, I did not flash KitKat baseband linked the Cloudy 2.2 installation guide (which might be the cause of all this).

2.Rebooted into TWRP recovery, wiped System, Cache, Dalvik, Data.

3.Installed Cloudy 2.2

4.Rebooted.

Now, the phone gets stuck on the LG logo and does not go past it even when I leave it for an hour.

What I tried to do:

1.Return to stock with KDZ method (tried both KitKat and L KDZ files).

Result: Error at the beginning of flashing telling me to unplug the phone and plug it back again.

2.Return to stock with .TOT method.

Result: Error at the beginning of flashing.

[10:52: 1] CrossDL [] to [F320L]. SWversion[][10:52: 1] ¡Ú¡Ú ERROR REASON : LAF_ERROR_INVALID_INPUT_FILE
[10:52: 1] CComPort::ClosePort, Closed Port Successfully for COM 41
[10:52: 1] CBasicComControl::Close, the port(COM41) is closed successfully
[10:52: 1] [10:52: 1] CrossDL [] to [F320L]. SWversion[]
[10:52: 1] DoDownload() Exception

For some reason my phone lost its model name...?

2b. Hex-editing .tot file to replace “F320L” with zeros to get around the above error (but I don’t know if it would help at all with flashing higher stock roms because it would probably not restore the model name if I blanked it, would it?).

Result: at 6% process stops and I get this error:

[10:56:21] InitDiag is success.
[10:56:21] InitializeProcess() is success.
[10:56:21] CComPort::ClosePort, Closed Port Successfully for COM 41
[10:56:21] CBasicComControl::Close, the port(COM41) is closed successfully
[10:56:21] Start Download

[10:56:21] Port is already closed
[10:56:21] Port Open 41
[10:56:21] [T000032] 48 45 4C 4F 01 00 00 01 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 4C 3F 00 00 B7 BA B3 B0 HELO....................L?......
[10:56:22] RX Timeout : 1000 seconds
[10:56:22] LAF_Packet Error, Error reason is 0
[10:56:22] We can't communicate with Phone[HELO_Packet]
[10:56:22] Port Close
[10:56:22] Port Open 41
[10:56:22] Retry download 1 time(s)
[10:56:22] [T000032] 48 45 4C 4F 01 00 00 01 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 4C 3F 00 00 B7 BA B3 B0 HELO....................L?......
[10:56:23] RX Timeout : 1000 seconds
[10:56:23] LAF_Packet Error, Error reason is 0
[10:56:23] We can't communicate with Phone[HELO_Packet]
[10:56:23] Port Close
[10:56:23] Port Open 41
[10:56:23] Retry download 2 time(s)
[10:56:23] [T000032] 48 45 4C 4F 01 00 00 01 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 4C 3F 00 00 B7 BA B3 B0 HELO....................L?......
[10:56:24] RX Timeout : 1000 seconds
[10:56:24] LAF_Packet Error, Error reason is 0
[10:56:24] We can't communicate with Phone[HELO_Packet]
[10:56:27] [T000038] 45 58 45 43 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 F0 35 00 00 BA A7 BA BC EXEC.....................5......
64 6D 65 73 67 00 dmesg.
[10:56:57] RX Timeout : 30000 seconds
[10:56:57] LAF_Packet Error, Error reason is 0
[10:56:57] We can't communicate with Phone[EXEC_Packet]
[10:56:57] Port Close
[10:56:57] RefurbishProcess() Error.
[10:56:57] ¡Ú¡Ú ERROR REASON : LAF_ERROR_PACKET_TIMEOUT
[10:56:57] CBasicComControl::IsConnected, the port(COM41) connection is not detected
[10:56:57] RunProcess() is fail.
[10:56:57] CBasicComControl::IsConnected, the port(COM41) connection is not detected
[10:56:57] [10:56:57] We can't communicate with Phone[EXEC_Packet]

[10:56:57] DoDownload() Exception

Special notes:

My phone does not enter into Recovery mode when pressing Power+Vol Down, releasing on LG logo and pressing them again.

It Never DID!

I tried many times, when the phone was working fine on KitKat, JB and L stock roms, or on CloudyG2 3.3. And it doesn't work now.

This button combination never did anything. The phone powers on, the LG logo shows up, I release the buttons and press them again, the LG logo keeps showing up for some more seconds and the phone shutdown due to prolonged pressing of Power button.

So as far as I can tell, Download mode is all I have at the moment.

Is there anything left to try?