[Android Q&A, Help & Troubleshooting] jason grey:
so i began my journey by trying to you know, update to andriod os 11 ,becuase why not, if a company can hold you at randsom by locking os software updates then i should be able to say, ' you know i bought the phone with my money, not stolen money so why can't i enjoy it'... boy was i an idiot...

so as i said step by step my phone bricked so i looked through some stuff... and then my eye caught a step by step website, the flasher version the guy was using was 0.9.24.4.... so i uninstalled the new version and installed the version i needed. just search for it you'll find it... i installed the drviers from the c:/flashtool/drivers/.....exe file just the flash tool driver and nothing else. i ran it, loaded my firmware .ftf file and plugged in my cable. it didn't give me a driver to old response.... i ran the flashtool and a few seconds later i got the message turn on your phone. success....

now a few things just in case.... the beep from the holding up and power button is not to boot recovery mode it's to force a restart incase the phone freezes also the three beeps shuts the phone down nothing else the g3212 doesn't come with a recovery mode.... sony you suck... stop making phones becuase you have no idea what your customers want or design your own os but plz all you do is screw things up even more, this is my opinion... the only way to get into fastboot mode is via a usb and volume up+power button.

to get into flash mode is volume down + insert usb don't press power... especially when blocked, becuase then it'll turn on and then you have to disconnect the battery... also the unlocked device thing after unlocking bootloader doesn't go away. i checked

when trying to unock the bootloader of the g3212...

step 1 : search in google how to unlock sony xperia ax1 ultra, you'll get a developers.sony web link click on it and scroll down to the bottom of the page where you'll find how to ulock bootloader.... click on it.

step 2: do exactly what the page tells you and use the first imei number....

step 3: type *#*#7378423#*#* into your keypad... it'll bring up a services menu, then go to service info>configuration>rooting status as shown on the site... it should say bootloader unlock : yes

step 4: don't download the whole usb drivers thing it didn't help me i doubt it'll help you.

step 5: download android sdk tools from https://developer.android.com/studio/releases/platform-tools

step6: head to your phones settings>system>about phone tape the build number repeatedly 7 or 9 times. until it says you're now a developer. go back once and into developers options> turn on oem unlock and press yes or confirm or whatever also turn on usb debugging.

step7: connect the usb... you don't have to power off your phone at least i didn't. please don't blame if something goes wrong i'm just trying to help...

back on your computer

step8 :inside the extracted platform tools folder. where the path is click and type cmd, when the cmd launches type adb reboot bootloader. your phone should turn off and then a blue led should come on, you're in flashmode.

step 9 : then type fastboot oem unlock 0xyour imei number

how to find imei number and unlock code...

https://xdaforums.com/t/having-problems-with-my-sony-xperia-ax1-ultra-g3212.4565571/

go to bottom under devices choose your phone and tick both boxes, and submit an enter imei number input will appear... the flashing thing place input...

now to find your imei number dail *#06# choose the first one