Stuck on fastboot flashing unlock(Now Black screen)

[anon48570964]

Hi everyone,
i bought me an Gigaset GS290 - update to Android 10 - Now i try to flash the /e/ OS but i stuck on the part with
" ```
fastboot flashing unlock

On the Screen of my device i can see in the left down corner FASTBOOT mode ... 
but when i ttry to give the order above nothing happens. What do i wrong?

thanks

Mimus


**[Regain your privacy! Adopt /e/ the unGoogled mobile OS and online services](https://e.foundation/)**![phone|80x80](upload://mtacZf1KIgDZJegjO3jnRNYJDPg.png)

[anon48570964]

Hi,
my gigaset gs290 has now a black Screen. I can not boot and switch on…
I don’t know why…
Can I sent my phone to someone,how can help me,mmy location is near Saarbrücken -Germany…

[omovatet]

Hi Mimus
I am new to this /e/OS flashing thing like you, too. I was stuck in a boot-loop and could not power-off nor could I go into flashboot mode. What helped me out, was:

Press volume up first and then hit the power button. This brought me to the screen, where I could choose between recovery mode, fastboot mode and normal boot.

Maybe this helps?

Cheers

[anon48570964]

Dear Friend,
i thought, i brick my device. When i put usb c in my latop the usb connect signal comes and goes in intervall. I cant go in fastboot mode with Volume down and power on. The Screen stays black. No chance. I hoped, that a crack who is living near to me help me, or i can send my phone to an crack how know what’s to do. But i give up…
Almost thanl you very much you try help me.
greets
mimus

[basat64g]

Even if fastboot is not working, you can revive/flash the phone with the Android 10 image again using the official installation guide (look for SP Flash Tool). I also had issues with fastboot not reacting and managed to start at the beginning again. Be sure to do as the guide says and to download the correct image, which is linked. SP Flash tool uses Mediatek built-in pre-init system to flash low-level.

What also helped on my computer, was to start adb/fastboot command and then to plugin the phone, otherwise it wouldn’t detect.

[anon48570964]

Hi basat64g,
i try this, but SP Flash Tool abort the Flashing of the original ROM and message me that i first have to take a signed ROM or deactivate the verifing for the choosen one. But this can only do (so i think) in Fastboot mode over terminal command. But i do not have the chance to come in this area, because the screen stays black. The Device dont work. Only when i put it on usb on laptop i hear the usb sound in windows 10 for conecting and disconecting every few seconds… :o(

[Chris375]

I’m facing the same problem! After installing /e/ OS using Easy Installer v0.12.1-beta. on a Debian 10 Notebook, phone is not responding to any button. Screen is black. I followed the instructions of the easy installer step by step. Also the installer reported success after flashing. If needed I can provide the debug log.

Phone gets not recognized when plugged in notebook via usb cable after flashing with easy installer.

The syslog output is the following:
Mar 8 14:33:28 FJE734 kernel: [ 942.215872] usb 1-9: new high-speed USB device number 4 using xhci_hcd
Mar 8 14:33:29 FJE734 kernel: [ 942.364922] usb 1-9: New USB device found, idVendor=0e8d, idProduct=2000, bcdDevice= 1.00
Mar 8 14:33:29 FJE734 kernel: [ 942.364925] usb 1-9: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Mar 8 14:33:29 FJE734 kernel: [ 942.364927] usb 1-9: Product: MT65xx Preloader
Mar 8 14:33:29 FJE734 kernel: [ 942.364928] usb 1-9: Manufacturer: MediaTek
Mar 8 14:33:29 FJE734 kernel: [ 942.387356] cdc_acm 1-9:1.0: Zero length descriptor references
Mar 8 14:33:29 FJE734 kernel: [ 942.387370] cdc_acm: probe of 1-9:1.0 failed with error -22
Mar 8 14:33:29 FJE734 kernel: [ 942.427560] cdc_acm 1-9:1.1: ttyACM0: USB ACM device
Mar 8 14:33:29 FJE734 mtp-probe: checking bus 1, device 4: “/sys/devices/pci0000:00/0000:00:14.0/usb1/1-9”
Mar 8 14:33:29 FJE734 mtp-probe: bus: 1, device: 4 was not an MTP device
Mar 8 14:33:29 FJE734 snapd[643]: hotplug.go:199: hotplug device add event ignored, enable experimental.hotplug
Mar 8 14:33:29 FJE734 mtp-probe: checking bus 1, device 4: “/sys/devices/pci0000:00/0000:00:14.0/usb1/1-9”
Mar 8 14:33:29 FJE734 mtp-probe: bus: 1, device: 4 was not an MTP device
Mar 8 14:33:31 FJE734 ModemManager[630]: (ttyACM0) could not open serial device (2)
Mar 8 14:33:31 FJE734 ModemManager[630]: [plugin manager] task 3,ttyACM0: error when checking support with plugin ‘Nokia’: ‘(tty/ttyACM0) failed to open port: Could not open serial device ttyACM0: No such file or directory’
Mar 8 14:33:31 FJE734 ModemManager[630]: (ttyACM0) could not open serial device (2)
Mar 8 14:33:31 FJE734 ModemManager[630]: [plugin manager] task 3,ttyACM0: error when checking support with plugin ‘u-blox’: ‘(tty/ttyACM0) failed to open port: Could not open serial device ttyACM0: No such file or directory’
Mar 8 14:33:31 FJE734 ModemManager[630]: (ttyACM0) could not open serial device (2)
Mar 8 14:33:31 FJE734 ModemManager[630]: [plugin manager] task 3,ttyACM0: error when checking support with plugin ‘Telit’: ‘(tty/ttyACM0) failed to open port: Could not open serial device ttyACM0: No such file or directory’
Mar 8 14:33:31 FJE734 ModemManager[630]: (ttyACM0) could not open serial device (2)
Mar 8 14:33:31 FJE734 ModemManager[630]: [plugin manager] task 3,ttyACM0: error when checking support with plugin ‘Via CBP7’: ‘(tty/ttyACM0) failed to open port: Could not open serial device ttyACM0: No such file or directory’
Mar 8 14:33:31 FJE734 ModemManager[630]: (ttyACM0) could not open serial device (2)
Mar 8 14:33:31 FJE734 ModemManager[630]: [plugin manager] task 3,ttyACM0: error when checking support with plugin ‘Iridium’: ‘(tty/ttyACM0) failed to open port: Could not open serial device ttyACM0: No such file or directory’
Mar 8 14:33:31 FJE734 ModemManager[630]: (ttyACM0) could not open serial device (2)
Mar 8 14:33:31 FJE734 ModemManager[630]: [plugin manager] task 3,ttyACM0: error when checking support with plugin ‘Generic’: ‘(tty/ttyACM0) failed to open port: Could not open serial device ttyACM0: No such file or directory’
Mar 8 14:33:31 FJE734 ModemManager[630]: Couldn’t check support for device ‘/sys/devices/pci0000:00/0000:00:14.0/usb1/1-9’: not supported by any plugin
Mar 8 14:33:31 FJE734 kernel: [ 944.881095] usb 1-9: USB disconnect, device number 4

Any ideas how to recover the phone?

[anon48570964]

Hi Chris,
have you a option to try the easy installer with a Windows PC? When you try it, think about the Administrator Account to install and flash the Smartphone. The cable is OK?
Greetings

[aibd]

If I had a GigasetGS290 with a black screen in any of the modes I would do a Hard Reset. (I might try Soft Reset first just to check the effect.) I checked the manual, and (in a short search) found no reference to Soft Reset or Hard reset. The manual says for information further to that in the manual you are to contact their support service, in your country, seems to be available online or by telephone.

If the black screen is in say the Fastboot mode only I would assume I could use Factory Reset from within the phone and the Utility modes would all come good.

When I search online I find this, How To Hard Reset GIGASET GS290? and Factory reset Gigaset GS290.

Update When I asked at Gigaset Service portal about Soft Reset I received this reply:

You have asked us how to do a soft reset on this model, first of all, you should remove the SIM card and SD card before resetting.

Also, we recommend you to back up your data beforehand, as all memory contents will be deleted.

In order to reset the phone, please follow next steps:
"Settings > System Settings > Backup & Reset.
and select “Reset to factory defaults”.
Or (depending on the software version)
Select Settings > System > Reset options > Delete all data (factory reset). > Restart phone.

We hope that you find this information helpful and useful regarding your inquiry, if not, please contact us back and we would be more than happy to provide additional information.

[aibd]

@anon48570964

i thought, i brick my device

Will one of the above options work for you?

@Chris375 The main thing your log is telling us is 12 instances of

Could not open serial device

Easy Installer v0.12.1-beta tried many options, but in some way the device was not actually in the mode that it was expecting.

Will one of the methods above allow you to recover the phone?

[wilminator]

Hello,

just recived my GS290, tried to install e with the easy installer. Followed every step carefully. At the end I waited really long for the phone to turn on again.
Never happed, its dead! Black screen, doesnt react to any pressed key, no reaction if connected to power, PC doesnt recognize it anymore.

Any hope that I can restore the phone? Would really appreciate any help.
Cheers Wilm

[aibd]

Hi Wilm, welcome. Did you first report this on Telegram?

From what you say, your phone will be fine, do not worry about that.

[wilminator]

Hi,
no i did not. Should I?
Cheers Wilm

[aibd]

Absolutely no need to report on Telegram!

I just gave advice to another with the same problem. :

Did you see the current Gigaset / Easy Installer warning here?

[LIST] Devices working with the Easy Installer

Introduction /e/ version installed Further Reading Validation Validation chart Introduction The official /e/ documentation page is nows found here https://doc.e.foundation/easy-installer. This page was last updated with factual information on 05-05-2022. More devices are now supported. The following list of the “original” Easy Installer supported models, links to each device’s information page. Some devices include variants which are not supported by /e/. At the foot of each information …

Do not worry. Let’s see if we can get a log to start with.

Howto troubleshoot issues with the easy-installer

General hints If your problem is not mentioned in this topic, maybe you can find something in the official Installer FAQ. Please specify operating system and phone model In case you ask for help, please specify which operating system you are using on the computer running the installer and which exact phone model you try to install on (e.g. FP3 or FP3+ or …). Please also specify the current major Android version on your phone (e.g. Android 10, 11, …). Where to find the log The installer crea…

And let’s reset your phone by one of the methods above.

[wilminator]

I read the warning after the problem occured. Just saw gs290 listed on supported devices and thought itsfine.

I used „easy installer“ on Ubuntu 20.04

Found 2 Log files here are the links
https://haste.tchncs.de/kuvagiweqi.php
https://haste.tchncs.de/apudegajub.php

Thanks a lot for your help!

[aibd]

Great, what operating system is on you computer? Edit, sorry, you said Ubuntu 20.04

[wilminator]

I used Ubuntu 20.04 Gnome 3.36.8, I also have windows10

[aibd]

you have a choice of 2 operating systems, that is good!

Let’s deal with one only, to start with! I see your first log on Linux.

Did you recover the phone yet?

[wilminator]

No. I will give it a try with SP Flash Tool. But i have no expirience with recovering or flashin phones.
What would you recommend?

[aibd]

@wilminator

What would you recommend?

I suggest you do a Factory Reset first, do you see the suggestions immediately above?