Hi everybody,
I have been trying to install /e on a Samsung A21s. I followed the doc (Install /e/OS on a Samsung Galaxy A21s - “a21s”), but when trying to install the os, at the step
adb sideload downloaded_file_name.zip
I got the following on the phone screen
I am not really sure how to proceed from here.
Is the phone bricked, how I there a way to solve it?
Thanks a lot,
Cheers
Hello @S1mon, Welcome to the /e/ users forum.
is related to requirements in Install /e/OS on a Samsung Galaxy A21s - “a21s” :
Tip: Before installing /e/OS on the Samsung Galaxy A21s a21s for the first time, install the latest stock OS version 12 build on the device
.
does your PC use Linux, macOS or Windows ?
Hi @piero
thank you for you reply.I paid attention to have Android 12, but not sure whether it was the last android 12 version.
I use a PC with linux.
if you still have access to SamsungOS, you can use the system updater.
if you don’t, you will need tools,
to flash latest firmware prior to /e/.
what is your “free from carrier” country related CSC ?
600+ Samsung CSC Codes - Complete List (2025) - Technastic
what is your device model-number ?
https://samfw.com/firmware/SM-A217F
https://samfw.com/firmware/SM-A217M
Thanks for the hints.
Unfortunately I do not have access to SamsumgOS.
what is your “free from carrier” country related CSC ?
It seems that the code is AUC (country in which I am living, right)
what is your device model-number ?
And the model is SM-A217F
Can I try to flash the SamsungOS with the /e recovery ?
no,
you need Odin4 (that can be managed by Galaxy-Flasher)
https://samfw.com/firmware/SM-A217F/XEF/A217FXXSCDXE2
i have prepared the command :
odin4 -b BL_A217FXXSCDXE2_CL24202344_QB80526509_REV00_user_low_ship_MULTI_CERT.tar.md5 -a AP_A217FXXSCDXE2_CL24202344_QB80526509_REV00_user_low_ship_MULTI_CERT_meta_RKEY_OS12.tar.md5 -c CP_A217FXXSCDXE1_CP26478472_CL24202344_QB80393549_REV00_user_low_ship_MULTI_CERT.tar.md5 -s CSC_OXM_A217FOXMCDXE2_CL24202344_QB80526509_REV00_user_low_ship_MULTI_CERT.tar.md5
Ok so installing Odin4 and running the command you sent will flash the samsunOS, right?
And from there I can start over from the documentation ?
One more question, to flash the samsungOS, I should restart to the download mode, right ?
From the Odin website they talk about Odin Download mode, is that the same as mention in /e documentation ?
in 20caracters
It worked, /e is running. Thanks a lot for your help.
One quick question, is it safe to flash on OS this way, downloaded from the internet ?
it is this way for years, i don’t know other channel.
there are other sites, one is paid, some have lower speed…
have a search for A217FXXSCDXE2
OK, great!
Thanks a lot for everything!