[Moto Z Play Guides, News, & Discussion] xaskasdf:
Hi folks! Today i'll bring you a guide to enabling all the basebands in qualcomm manufactured phones, focused in Moto Z Play.

Since a lot of us got the Chinese version of this phone, i have been reading a lot of people complaining about signal problems and that's cause the MZP CN comes with band 800 only. Now i made this guide to show you how to enable the base bands in our phones (and other Qualcomm phones, so feel free to share it).

First of all, you have to get all the things to work, these are:

USB Cable of your phone

A working PC with Windows

QPST and mztool software

QDLoader HS-USB Drivers

I have uploaded the QPST with MZTool and the Drivers for your convenience, since this software have the capability to modify the imei, i can't upload directly to xda.

QPST is here

Drivers are here

Well, first of all, we have to make a backup of our radio partition, if something goes wrong or if you lost your imei in the future, etc.

For doing this we will have to turn off your phone, then start it in bootloader mode (vol down and power), and then scroll to "QCOM" and press power.

Then you have to plug the cable to your computer and install the Drivers and the QPST Software, if you had installed previously don't worry, just wait 'till the PC recognize the phone and install it, it should look like this

[IMG="Phone in QCOM mode on Device Manager"]https://lh3.googleusercontent.com/27N7XDfBd24JQ0vaemnTdxsk1d4oH_erKf12rdhM7LeJNQEHwhS9JeXfNUUCwEfcHq0A2R6EkK638fI=w1920-h945[/IMG]

After installing the device drivers, you should start saving the backup, for doing this, open program QFIL in the QPST folder in Start menu of your computer, then going to Tools tab and selecting "Backup/Restore QCN" option like this

[IMG="QFIL with backup and restore"]https://lh3.googleusercontent.com/ZpU4lffnw8qzAogGb4oXY46Y0Rwtl83LW4xX4Z6ofUHsF0ODQh79UiWoz6LLyqTYZOBV6IFVnCYNpIo=w1920-h945[/IMG]

Then select the folder to read/write the .qcn file (this will be the backup, so you can change the filename and the destiny folder).

Later open RF NV Manager, but first of all, you must close QFIL and open QPST Configuration program from the QPST Start Menu Folder, then open RFNV Manager (if this last one doesn't come up in the QPST Start folder, don't panic, just search for it in bin folder at QPST install folder and open the program from there)

[IMG="Phone on QPST Config program"]https://lh4.googleusercontent.com/yGVMPuerGeaTFeGPOnB4EiUR_rKvh2r81M3w3iAokPYtXD7fpLnXfsJqSJnvAwnDt4XkbH7Htv5w4rA=w1920-h945[/IMG]

In RF NV search for tab Setting > Comport, and in the drop down menu look for the COM port that matches with the one in the QPST Config program or the one in Windows Device Manager, then select from tab File > Read from Phone, and wait 'till it finishes. After this, scroll down in the items left box to number 1877, this is were the basebands are written, click on this and a number should appear at the right box like this

[IMG="RFNV"]https://lh6.googleusercontent.com/qlmvTN-Rca10D-LN0fR5kZdEV0u56tAC8e4W-V8tHC6A0g_vmo6VX9hTCVmGfREMeRkQLU_dBPtoqcE=w1920-h945[/IMG]

Then open mzTool and select on "Band Preference" tab the basebands you want to enable, then look for the decimal number in the right lower part and write it on RF NV, then select 'Write NV' box upper from the box you entered the code, click this a couple times just to be sure it's done

[IMG="MZTool Selected Basebands"]https://lh4.googleusercontent.com/9dbl8ZVC0gqp9nnf-UQsqg5XvHWZXoV2nQO0EgPQJ9S4W-K4fQsmgbldCoUJ3O-H38Ng7E8ICITz7i4=w1920-h945[/IMG]

Then reboot your phone on normal startup, open the dialer and press *#*#4636#*#* to open the testing menu, and then select the phone info menu, then in the scroll down (the vertical three dots) select the radio you want to use, and that's all! :p