Unfortunately, rooting the Unihertz Titan devices is necessary from the start (since 2019). Everything worked very well up to A13 GSI. And now also iodeOS 5.10. I really want to test iodeOS 6.0 on the Titan.
I’ve now updated the Atom L (not rooted) to iodeOS 5.10 GSI, and - Bluetooth does not find any devices!
I will now test two (A13 + A14) current other GSI with built-in microG.
Unihertz Atom L
4-inch small, robust smartphone, IP68 protection class
Stock Android 11.0 v2022 | Kernel v4.14.186
iode-5.10-20250219-arm64_ab.img
First I updated the firmware A11 v2021 to v2022, then immediately installed iodéOS 5.10 GSI with built-in microG without any problems.
Bluetooth works, but …
… the connection is interrupted every few seconds, then reconnected, then interrupted again, then reconnected (active). As soon as I play a video lasting several minutes, the BT connection remains constantly connected. Then interrupted again … connected.
Exactly the same scenario happens with very highly compatible A14 GSI e-2.8-a14-20250227-UNOFFICIAL-arm64_bvN from @Colors
Installed the latest GSI on my Xiaomi 12 pro. Had LineageOS 22.1 before on it.
Actually most stuff works flawlessly, except VoLTE, VoWiFi, auto brightness and double tap to wake.
Will test further and report!
Installed on the Blackview BV4900 Pro (BV4900ProUS0007640), originally sold with Android 10.
Architecture => arm64-v8a
Chipset => MT6762V/WD
A couple of things to report:
- I did a fresh start from the official firmware provided by Blackview when I asked them for it ( zn128e-dk021P-64-64g4g-hdp-b3-bom12-cts-US-dk_BV4900Pro_US_ZN128e_V1.0_20220308V09_user_20220309 ),
- Required to do
to free up some space.fastboot delete-logical-partition product_a fastboot delete-logical-partition system_ext_a fastboot delete-logical-partition product - No need to re-package as a super.img, simply flashing the system.img did it.
- The first boot took a very long time (more than 5 minutes), during which I was only seeing the “Orange state” alert message.
- Bluetooth and the aux input seem to not be working.
Xiaomi Mi 9 cepheus
SoC: Qualcomm SM8150 Snapdragon 855
Stock Android 11.0 V12.5.2.0.RFAEUXM
iode-5.9-20250128-arm64_ab.
TWRP Recovery
GSI iode-5.10-20250219-arm64_ab
Manual update without Hostmaschine (PC), without data loss via …
TWRP > Install > System Image - from USB-Stick
GSI iodéOS 5.8 + 5.10
This is how I know the behavior of Bluetooth on the Titan.