MSM7x27 UART2 port is not enabled by default.
To perform the emergency download, please follow below instructions to expose the UART2 interface.
1. enable UART/All DB9 in SURF FPGA menu
2. attach T32 to MSM7x27 device
3. cd AMSS\products\76XX\build\ms
4. do FPGA_UART2_SETUP.cmm
5. connect RS232 to SURF UART2 port
Now you should be able to detect the download port in QPST and follow standard procedure to do the emergency download.
Hello, I bricked my Samsung M820 Prevail (MSM7x27 device), it now in bootloop, just show SAMSUNG at start up then reboots, the brick occurs when I modified NV items, well the facts are:
ReplyDeleteI can put it in download mode then use Samsung Odin to flash all (Boot, PDA, Phone) without problems but again after reboot enters in bootloop
The recovery mode (volume up + power) don't work.
I'm sure that can revert brick if know how to communicate with the phone in download mode to access NV items (EFS partition), but unfortunately CDMA Workshop or QPST can't communicate with the phone in download mode...
Exist a program that can communicate with the phone using Odin protocol to access partitions (EFS) ? maybe a way to backup EFS with odin then modify it and flash it back to the phone?
I know exactly what NV item caused the problem (NV item 1878), I only need to change it, but my phone stuck in download mode... any ideas greatly appreciated !
Thank you.
maybe you can use uart port to download the nv file.
Delete