I am back on MagicArrow 3 and all is well. Thanks.
* A zip file!
* Cleaned up ramdisk
* Improved kernel
* DT2W (or 4T2W when device is dozing), code from @meticulus (github)
Both sim cards detected on UL00 device....
Thanks for your great help.
Thanks for this installation advice and my phone is working perfectly.
Model Number: HUAWEI GRA-UL00
Build number: GRA-UL00C185B398
Android version: 6.0