wusel
February 1, 2026, 9:39am
1
Hello everyone,
Yesterday, a system update was offered and performed at the Edge 30. After that, the device booted (after entering the SIM PIN) to the lock screen.
Problem: Lock screen cannot be unlocked (by swiping up + PIN)! The lock screen does not respond to anything!
What can I do? Do you have an idea?
wusel
February 1, 2026, 10:11am
3
Thanks, but what do you mean with “switch to other slot”?
And an additional question: At lock screen there are 3 buttons, the right button is white highlited - what does this mean?
piero
February 1, 2026, 10:15am
4
fastboot set_active other
wusel
February 1, 2026, 10:21am
5
OK, what is the meaning of this command?
What will be happen after this command?
piero
February 1, 2026, 11:13am
6
instead of checking the active slot (a or b), and then activate slot_a or slot_b
this command simply activate the other one…
what is hoped is booting previous /e/ installed version.
avoiding potential anti-roll-back feature…
wusel
February 1, 2026, 11:29am
7
ok, but for adb communication USB debugging needs to be enabled, right?
How can I do this without access to device settings?
piero
February 1, 2026, 11:33am
8
it is not adb but fastboot command.
wusel
February 1, 2026, 11:42am
9
ok, understand, but isn’t it necessary to have the unit in fastboot mode?
I have tried this command with connected unit via USB, but it is waiting for any device….
wusel
February 1, 2026, 11:58am
11
“fastboot command is not found” is not the case here. It’s known - but it does not found the device. That’s why I am asking if the device must be set in a fastboot mode.. or…?
aibd
February 1, 2026, 12:14pm
13
This is your situation. @piero did not link you to “fastboot command is not found”.
Yes; that is what the linked thread asks you to do … and
piero:
yes
1 Like
wusel
February 1, 2026, 2:49pm
15
OK, I have loaded all latest Windows drivers for Android etc. according your link “How to”, which were displayed at windows update section at “optional drivers”. But I assume no fastboot driver was displayed…?!?
Then I restart the device into fastboot mode, I see the this window:
Fastboot
I press “start” and the device is starting up to the SIM PIN menu, PIN ok, then again I see the lock screen.
Connect it via USB, then try “fastboot devices” without any resuls
piero
February 1, 2026, 3:08pm
16
wusel:
I restart the device into fastboot mode, I see the this window:
Fastboot
I press “start” and the device is starting
so you leaved the fastboot mode to launch the normal android system mode.
wusel
February 1, 2026, 4:16pm
17
Ohh, yes, you are right! Sorry!
OK, again I set the unit to fastboot mode. Now I see with “fastboot devices”:
C:\WINDOWS\system32>fastboot devices
xxxxxxxxxx fastboot
Then I display the fastboot informations: “fastboot getvar all”, then I see a lot of information.
Some important lines are:
(bootloader) version-bootloader[0]: xxxxxxxxxxxxxxxxxxxxxxxx
(bootloader) version-bootloader[1]: xxxxxxxxxxxxxxxxxxxxxxx
(bootloader) product: dubai
Which means: slot 0 = dubai bootloader, but what is slot 1 ???
Can I try “fastboot set_active other”?
1 Like
piero
February 1, 2026, 4:22pm
18
wusel:
1RD34.80-40-f0ea3
give me https://www.stockrom.net/2024/09/xt2203-1-retbr-os14-u1rd34-80-40.html
so, slot_b can still be populated by stock OS
yes,
but you could face StockOS,
wusel
February 1, 2026, 4:33pm
19
So then I get back to stock ROM, right? But how can this help?
1 Like
piero
February 1, 2026, 4:34pm
20
wusel:
I get back to stock ROM
in this case, allow “USB debugging”
and fastboot flash recovery-e on slot_a
then adb sideload e-3.3 (BUT WITHOUT FACTORY-RESET)
wusel
February 1, 2026, 4:38pm
21
That means, a complete new installation then?
So in every case all data are gone?