BG96 firmware difference

Hi! Im using BG96MAR02A07M1G modems in the project. My code working as expected on modem FW, but with I cant connect to the network at the first boot.
Can I ask for release notes for 007-009 modem FW?

After you upgraded the module from version 007 to 009, have you been unable to connect to the network so far?Do you perform the restart module operation?
If you still can’t connect to the network, you may need to grab the LOG, we can analyze the possible causes!

I attached the release notes of BG96MAR02A07M1G_01.009.01.009 for your reference

Quectel_BG96_Firmware_Release_Notes_V0207. (703.1 KB)

Hi. I have two batches of PCB with BG96MAR02A07M1G modules and STM32L431 host controller. First batch has 007 modem firmware, the second batch - 009. All boards have the same host controller firmware.
Boards with 007 modem FW works without any problems. But boards with 009 modem FW have problems on first start. First start (first connection to the network) can take up to an 1 hour. After the first successful connection modems works fine.
Grabbing the LOG is a little bit tricky - boards was designed by the outsource company 3 years ago, and developers don’t leave any debug interfaces nor for STM32 nor for BG96 =)
I can write a custom FW for STM to save logs to the flash for test purposes, but I`d like to start from digging to documentation about 007-009 changes.

Thanx a lot!
May I ask for 007-008 release notes and update files for upgrade from 007 to 009 and downgrade from 009 to 007?

The BG96MAR02A07M1G_01.009.01.009 release note already mentioned what was fixed in 008.
BTW, BG96MAR02A07M1G_01.009.01.009 is quite old version (the release date: 2018-11-19)
Why not update to latest version?