[Lenovo Zuk Z2 Pro Guides, News, & Discussion] weimerd:
Hi there,

I want to share the available RadioModems and baseband collection with you.

All credits to [MENTION=4723116]crisps[/MENTION]

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For all lazy readers that just want to get a good baseband:

After several tests from my side and verifying with other users here is my SUUGESTED BASEBAND for all Roms:

Radio Modem Full Version 4.0.247ST:

https://mega.nz/#!BYRiwYyA!1KU2-2Ovq2yB9RvaXCv95EFt_2aGNaziQ8Qka7R0ab4

You may use others as well. This is the most stable yet with less compatibility problems. Feel free to take another version. It is a suggestion only.

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I will update this thread when receiving new RadioModems/basebands.

Take care, all are to be used at your own risk, neither me or [MENTION=4723116]crisps[/MENTION] will be responsible for any damage.

I tested all without any problems.

NEW ADDED FILE HOST for all files: https://www.androidfilehost.com/?w=files&flid=243936

Radio Modem full version 1.9.104:

[offline for further investigation]

Radio Modem full version 2.3.044:

https://mega.nz/#!FBIFiADK!LF7bSKdJzT8ZtwyTBMQEr5MY13OWyvg7a9dVinb0Ekk

RadioModem full version 2.5.435: https://mega.nz/#!8Z5SXYqL!ZRTeg_HuAWHvuIIxSVvIcwIgAO7CRMXPDeteeWMRy6g

Radio Modem Full Version 2.5.462: https://mega.nz/#!FUZGmJKR!paZBjuIhmVSm8W8elCySSUYByWvsmnViVpjs1afSjMQ

RadioModem incremental update 2.5.462 to 3.1.185: https://mega.nz/#!wNwiBT5R!SyE5LkVu6dH9YE0brrWKa4455wEy1uxz6G8Isod2HYU

RadioModem incremental update 2.5.462 to 3.1.187: https://mega.nz/#!YchFlKhY!Ggl42bietkJEqIbTAqgjMP8EOnAMuvU8O_lwnmRU2eg

Radio Modem Full Version 3.1.194:

https://mega.nz/#!BYBRkZLQ!weyHLt0bf2FG867vJhTpR3EBakLx9Zr9eJGbBBiMrS0

Radio Modem Full Version 3.1.218:

https://mega.nz/#!9FQyHTRZ!OAG2uJ0wFj1TdjZN0Ji46JEKXncNOYtU2ftJUJOwv-E

Radio Modem Full Version 3.5.204 DEV (take care, it is a DEV version!): https://mega.nz/#!1BxRDRJD!ltxiIj3kNKF2716sDPqk0FXVo7AapoR_RlZOsTHHIt0

Radio Modem Full Version 3.5.231 DEV: https://mega.nz/#!QABjSIYK!ryiyENe8S1x8e7_Bpiber8v0eC9B4NhAnQUfOxZpXSA

Radio Modem Full Version 3.5.243 ST: https://mega.nz/#!IAJ1yQpI!yosyVMnSET0gQTAjDrvLARwUDkOU_W8AFXiC_W_tA5Y

Radio Modem Full Version 3.5.259 ST leaked:

https://mega.nz/#!oB4GUZiR!tmQ0hzCZS7HE5zUBwnHz13fJZghKQA4YmAbZJfz-CPo

Radio Modem Full Version 3.5.316 ST leaked:

https://mega.nz/#!FRInVZwa!AshSEqg8tib6tdnenzFz3mHh5bHGpR4h__0QcYW1-WI

Radio Modem Full Version 3.5.344 ST:

https://mega.nz/#!FMQFWY4S!9W2Cct_sSZFEf7SL0cPzJ9xEeUuIwK5LMk0_xZZdGzY

Radio Modem Full Version 3.5.376 ST:

https://mega.nz/#!4RIV0bKD!NPkX6AfCVs9sAJo8thD7dGBaEiqH2D88zvmj-xeeISU

Radio Modem Full Version 3.5.388 ST:

https://mega.nz/#!UdxhGAaQ!nbiIRoSFV5158aaE8wSz1tbHT8QaFyqpxKHkW0TFsJA

Radio Modem Full Version 4.0.191 DEV:

https://mega.nz/#!xJJAmKgQ!hnltiAY3_PEHDDvAoRwTDxYsv3OvhehZhxDzmsj-Fdg

RadioModem Full Version 4.0.233 ST:

https://mega.nz/#!QYJBVY4J!JQxAF1QBBcYRBQgTQzwOI-F2CSrdiUJ_Cxm0KvIvvbI

RadioModem Full Version 4.0.247 ST:

https://mega.nz/#!BYRiwYyA!1KU2-2Ovq2yB9RvaXCv95EFt_2aGNaziQ8Qka7R0ab4

No wipes necessary after flashing.

Flash with twrp.

I used latest official twrp and RedWolf Twrp for testing

No difference in basband version shown in system so don't get confused. In system you will always see the same baseband version. This is normal even if there are changes made between the versions according to changelogs of ZUI updates. There are even more changes in RadioModem (WiFi, Bluetoooth etc.). But changelogs from ZUK are not really detailled ;)

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TroubleShooting:

Problem: After reboot your phone requires your usual pin on lock screen. But even when typing correct pin it will switch back to lock screen.

Solution: Reboot to twrp.

In twrp start file explorer (find it under advanced)

In folder data/system delete all files beginning with "locksetting". Usually one to three files.

Reboot. After reboot no pin is necessary, you need to re-setup again.

Problem: I get no LTE / 4G signal anymore. HELP!

Solution: Thanks to [MENTION=4628393]vickdu31[/MENTION] and [MENTION=5686701]juyer[/MENTION] there is the following mini guide:

- Download 3.5 latest baseband from this post

- flash it with twrp.

- Extract .zip of baseband

- Reboot to fastboot

fastboot -i 0x2b4c flash modem NON-HLOS.bin (this file is from .zip baseband)

fastboot -i 0x2b4c erase modemst1

fastboot -i 0x2b4c erase modemst2

fastboot -i 0x2b4c reboot

LTE working instantly.

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Enjoy mates :)