Xperia X Compact Can't Update from Android 6 to Android 8 in 2020

[Arvin_Fox]

I bought a new Xperia X Compact (a docomo version) 1 month ago. when I'm buying it was with the Android 6.0 update. I tried to connect it with Xperia companion many times and tried to update it. but it says the device is up to date and if i try to perform a software repair it pops up an error (like server response or something on the bottom right side of the companion) but i bought a new Xperia XZ1 (week ago) and it was Android 7.0 update. and it updated to android 9.0 update with the xperia companion. to check it was my compute's fault again I connected my xperia x compact and did everything (tried to find an update/tried to software repair) and it says again the same errors. please help me to update my Xperia X Compact to 8.0 update without any root or mods.

[RottenFoxBreath]

I would hazard a guess you need to flash a generic region firmware Android 6, then update that.

I'm sure Docomo are all locked, and that's Japan isn't it?

[Strampke]

In Xperia Companion  tap software repair and then at the bottom of the screen tap 'My device cannot be detected or started, or is a Smartwatch 3'

Xperia X Compact will go to Android 7.0

[Uliwooly]

@Arvin_Fox

If your carrier network (Docomo) hasn't approved and released the update, there isn't much to be done other than manually update with Xperifirm; with that said, if I recall there are issues flashing DOCOMO branded devices with other FTF files. You might want to double check on the XDA Forum.