How can I upgrade CID51 to CID52 on K550 with IMEI: 35273302xxxxxxx?

Hi everyone,

i've a K550i with CID51 and want to upgrade to CID52.
I tried this : Upgrade (DB2020 CID49/51) to CID52 but didn't work. The first 8 digits of the imei of the K550 are: 35273302. I'm not in the list of "supported imei" of the patch. :(
Tried PhoneXS+ and didn't work either. :( :(

In other forums told me that i have two choices:

1) find one K550i with CID52 and then do this gdfsread:0001084E, then apply the resulting script to my phone.

or

2) temporary change the first 8 digits of my imei with setool box, to match any of the imei of the list of the patch. Apply the patch, then change the imei back to the original.

Can't find any k550 cid52 so far and additionally i've the setool3 box... so i'm thinking to change the first 8 digits of the imei... but don't know if that will really work.

Will it mess the GDFS or something? Will it brick the phone?



Thanks in advance! And excuse my terrible english (i'm from Argentina).

Regards.