Huawei p10 lite was-lx1 /was-l21 ID change

[Desirat]

Hello dear gsmhosting users!
Today i received one p10 lite with Id HW-Demo

Phone has some features disabled because of this policy.

Could flash other firmwares but stay always the same.
So, after reading many foruns about vendor/country id change in huawei, decided to do it by hand. The program i have for Huawei does not change oeminfo ID (chimera).
I got twrp oeminfo partition backup from other p10 lite but from a diferent revision. I thought that it could be a problem to flash this partition on my phone as could brick it!
Compared both with hex editor to check diferences and changed this:



After i flashed changed oeminfo with twrp on this phone and all went ok.
Had to flash firmware again, lock bootloader and hard reset via erecovery.
All was ok, phone started to behave normaly. Initial start with all settings now show as normal, lock screen its possible, use of fingerprint also ok.
When i read all info with chimera, the vendor/country now show like this:



Even if all looks ok, was it there something else i could had changed?
Does those question marks after Country: EU�� could be a problem in the future? Should i change those simbols to 00 00 or it wont be a problem?
Is it possbile to change also the version of firmware in OEMINFO, as this phone still have the retail demo firmware C652.

Any thoughts on this?

Thanks!