My experiences so far with 4.0.1 (on Xperia X F5121):
- GUI tweaks are welcomed
- RAM consumption appears a bit lower than before
- (as mentioned before) Browser bookmarks lost after update
- (as mentioned before) Terminal history not saving, also issues copy-pasting if both the source app and Terminal are not running at the same time (paste button stayes grayed out)
- Accounts: when enabled/disabled, the change does not reflect in email until restarted
- If started immediately after reboot, the email app shows no accounts until restarted
Randomly:
- Exchange account often shows error in email, still trying to figure out any pattern to it…
- at least twice: after restart, phone acted very sluggishly, monitoring app Lighthouse showed CPU1 being at 100% while other cores stayed at 0%
My biggest issue is with Bluetooth: after having had the phone in airplane mode, bluetooth may appear working (icon on top, shown on in settings etc) but it cannot connect to devices. Running the Bluetooth test in CSD, shows “Turning Bluetooth on…” but it timeouts. After that the icon on the top bar disappears (leaving a blank spot between icons) and Bluetooth cannot be turned on from settings (blinks, but nothing happens) until the phone is restarted. (Are there any terminal commands to reset Bluetooth more with more force?) This has now happened to me daily! (In earlier versions, I did have the BT off, cannot turn on until reset -problem too, but very rarely).