Xt1250 gsm doesnt work finland

So, i've been trying to help @Wile_e with his xt1250 let me start from the beginning.

he bought an XT1250 for Cellcom, He wants to use GSM while he is on Finland and Wants to use CDMA on verizon on USA.

Actually he is trying to use with Carrier Saunalahti the carrier uses 900/1800/2100 GSM bands and those are supported by Droid Turbo/ Moto Maxx.

For some reason when he pops in the sim card he says it cant found any networks, but he puts it in on a RAZR I and it works.

I made him look into Global mode and GSM/LTE, also nothing.

First thing i made him do was, Unlock the bootloader.

Then i made him install the unbranded Firmware for XT1250.

He did that, nothing changed, no networks detected.

Then i made him flash droid turbo radio, same nothing happened and lost wifi, so, thats not a way.

so im thinking as xt1250 is closer to moto maxx, recommend him flash moto maxx kitkat radio, but im afraid it will lose the CDMA properties.

im also thinking into flashing full lollipop but that would make him not come back to stock xt1250 firmware due to gt.bin updating.

i also remember someone said that moto turbo firmware and radio had both options but im not sure.

what do you guys think will be a good solution?

invoking the help of @chazzmat , @Semseddin , @Skrilax_CZ

XT1250 Moto Maxx (Cellcom) Radios are not functioning in Europe need help

I am willing to pay for help as I need this fixed right away. Paypal, Google pay, whatever. It is after 10pm (22.00) where I am so anybody that is free now would be most helpful.

I have an XT1250 Moto Maxx that supposedly has an unlocked bootloader and is carrier unlocked but it appears that the radios are either disabled or the software is not loaded. I am currently in Europe and I need this phone to work. I prefer the stock ROM, the one from Cellcom is quite clean and fast and works so much better than my Verizon Droid Turbo (XT1254) did. If I have to change ROMS I will, but prefer not to. If I can just some how upgrade or change the radios I would prefer.

I used to be much more active in rooting and changing ROMS, but that was years ago and I am quite uncertain again of how to do so. I would love to get on a chat session with someone that can walk me through getting my radios to function.

Here's the deal.

XT1250 Moto Maxx from Cellcom. Worked perfectly on Verizon. Not connecting at all in Europe (Finland Elisa). I previously owned a Droid Turbo from Verizon (XT1254) and that connected just fine here with the same exact SIM card that I am trying to use in my Moto Maxx. The phone recognizes the SIM but does not connect to any towers. In fact it claims it can't see any at all. I've tried all network types but nothing is recognized. SIM card is active and functioning (using currently in my Moto RAZR I).

Model Number: Moto Maxx
Android Version 4.4.4
BAseband Version: MDM9625_104335.118.02.54R,QUARK_CUST
Kernel Version: 3.10.40-perf-g82972e2
hudsoncm@ilclbld53 #1
System Version: 21.11.11.quark_lra.LRA.en.US cellcom
Build Number: KXG21.50-11


Anybody willing to walk me though to open up the radios? I am not asking for free help unless of course that's not allowed on these forums.