LG V35 to LineageOS (Part 1): Backup and Upgrade to Android 10
· 24 min read
I have an LG V35 (LM-V350AWM, AT&T hardware) that I had cross-flashed to the US Open Pie 20f. This time I wanted to put LineageOS 22.2 (Android 15) on it as an app test phone, but the official LineageOS install guide requires the "latest stock Android 10" first, and AT&T only pushed Android 10 as an OTA, so there is no KDZ to flash with LGUP.
In the end I used the open-source edl tool to get into Qualcomm EDL (9008) mode, made a full backup of the partitions unique to this phone, and then wrote the AT&T 30e stock partitions that someone else had read from their phone into slot b. This is part 1. It ends with Android 10 booting; flashing LineageOS is left for part 2.