Xperia Firmware Cis Ru Ua Kz by

Sony Xperia XA Ultra F3212 Flash Firmware

For unbricking, Software update, Repair firmware, prepare unknown baseband or IMEI, unrooting, Switching from ysl stock rom to global stock rom, Global stock rom to ysl rom, Develover rom to global stock rom, Beta rom to stable version rom, etc.
Set before flashing

• Brand sure your Sony Xperia XA Ultra codename is
  F3212
• Provide Laptop/PC/Notebook Windows Bone XP/vii/8/ten and USB Cablevision data
• Charge your battery to a minimum of fifty%
• Download, unpack and install on computer:
  flashtool-0.9.28.0-windows.exe
• Download extract and install on computer:
  Sony Xperia XA Ultra Driver (Fastboot DIAG fashion)

Download Official Sony Xperia XA Ultra Stock ROM Firmware .ftf For Flashtool

How to Wink Sony Xperia XA Ultra Firmware using MIFLash

Disclaimer: All actions are at your own risk, don’t do it if y’all don’t understand at all or do it only past experts to avert risks such as hardbrick or other and always make certain to fully support all data systems your Sony Xperia XA Ultra F3212

1. Run
   Sony Flashtool by Androxyde
2. cull Flash (lightning logo)
3. Select Flashmode, so Ok
4. In the Source binder, click bespeak iii (…)
5. Navigate to the folder / firmware where you put the ROM extract results above and than Click the dropdown to notice the ROM version code, for case 45.5.B.x.xx, Checking USERDATA is optional, if checked then all data on your device will be lost. If unchecked, stay safe. I chose to keep checking to prevent the possibility of forcefulness closed, bugs, and and then on after the flashing process is complete. This ordinarily happens when switching ROM types;
   If so, click Flash.
   

Notes

• Tutorial above if the firmware is .ftf including organisation.sin but If firmware just OTA Update, you can wink via recovery or TWRP fashion.
• In many cases your Sony Xperia XA Ultra must be unlocked bootloader earlier flashing or upgrading like from Android 9 Pie to 10 Q
• Global ROM is for international, All country or Multilanguage
• Afterwards flashing, you will normally be asked to enter over again Sony or Google account username and password FRP,  If forgotten you must be bypass or unlock first. An alternative to fixing the trouble is with flashing Sony Xperia XA Ultra F3212 custom rom like  havoc os, Cyanogen modern, lineago os, AOSP Simply it must Rooting and TWRP installed first on your Sony Xperia XA Ultra .

Credits: Official Back up Sony , forums, AndroPlus, 4pda.ru, XDA develover and all android develover.