I can't update my G7

[Matty999]

Hi friends, I have a problem on my G7, can't update to the march patch, it fail everytime. (I attach a screen of the error).
Recently i unlock the bootloader and root my phone.
Then I have notice that my friend's phone update to this version: V20o-MAR-23-2020 while my phone should update to V20j-MAR-19-2020, I think the problem is the different letter after "V20".
Anyone have a solution?
Thanks
Screen: htt ps:// imgur. com/ a/FXzDpQY (Remove blank, i can't post link)

 

[manuhuelva]

The V20o is from TIM carrier and probably other carriers. The V20j is from OpenEU. U can google it to check it, i did in 2 min.