#Mt65xx preloader sp flash tool how to
#Mt65xx preloader sp flash tool windows

The removal of the battery isn’t necessary, however, it eliminates the possibility that the phone is in a powered on state unknowingly since nothing is displayed on the screen. To boot the phone into fastboot mode, even though it doesn’t power on with the power button: The phone doesn’t power on via the power button, however, I discovered that there is a second way which is actually very similar, but only realized it was happening until I happened across a forum post on XDA which mentioned it in passing, in combination with looking at dmesg output when performing the procedure.

#Mt65xx preloader sp flash tool how to

I suspected that this was the issue, but didn’t confirm it until I was able to figure out how to boot the phone into fastboot mode. I encountered this bit of information on the thread for the LineageOS work. No means to switch to slot a since the device doesn’t turn on to boot to fastboot.The device was trying to boot to “slot b.”.Since everything with flashing is working correctly and all of the partitions have been flashed with the stock image without error, there was only a couple of things missing which I discovered through some reading and exploration. The device was only in a soft brick state, as I thought.

So, I just did a little more digging and found a way to unbrick it myself. So, support wasn’t any help as they just wanted to replace it. With this new info, the phone still doesn’t power on, but IS detected by computer. path name(/dev/ttyACM0), port name(/dev/ttyACM0)Ĭonnect DA end stage: 2, enable DRAM in 1st DA: 0 It then proceeds to flash the phone without error, just as it does in Windows: is 0e8d I also found that SP Flash Tool will also flash the phone just as well in Linux, behavior is exactly the same, however, flash tool must have the necessary permissions to access the USB device. usb 3-3: USB disconnect, device number 10 usb 3-3: new high-speed USB device number 10 using xhci_hcd usb 3-3: USB disconnect, device number 9 cdc_acm 3-3:1.0: ttyACM0: USB ACM device cdc_acm: probe of 3-3:1.1 failed with error -22

cdc_acm 3-3:1.1: Zero length descriptor references usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 3-3: New USB device found, idVendor=0e8d, idProduct=2000, bcdDevice= 1.00

#Mt65xx preloader sp flash tool windows

Since discovering that Windows detected the preloader, and COM port devices, I checked again in Linux, and found that the computer does detect these devices correctly as well: usb 3-3: new high-speed USB device number 9 using xhci_hcd I’m going to email support to see if anything will come of that.Īlso, I don’t seem to be able to edit my original post, but I have some corrections.

It feels like it’s just a single command or action away from working correctly since it flashes with SP Flash correctly and without error. After being plugged in over night, still no change, doesn’t power on.