Downgrade android 9

[Spunkybob]

So ive upgraded to 9 but I dont like it... volume menus changed, wifi keeps dropping out (even after disabling auto turn on) etc. and I was very happy with 8.
I've been following the instructions from the Razor site to downgrade but whenever i run a fastboot command from the bootloader it just changes to the "powered by android" screen with a tiny "Press any key to shutdown" at the top.

Has anyone been able to do this successfully?

I've used fastboot and ADB a lot in the past so no idea why its doing this.

 

[blackknightavalon]

Take the Oreo .zip, unzip it, boot into bootloader, open up a Command Line/Terminal (depending on your OS), cd to the unzipped Oreo folder, type in fastboot flash-all, wait for that to end, then reboot into bootloader again and fastboot flash both boot and system (it should automatically flash it into the assigned partition)

I did this in order to update to MR1

 

[mahlemuts]

downgrade issues

not what was being asked.

you need to use a 3rd party usbA to usbC cable (stock cable doesnt play well)

once thats done, test its connected using 'fastboot devices' you should see the serial number of your phone.

then run the flash_all command (remember to unlock bootloader and critical partition beforehand)

minimal adb and fastboot installer PLUS android bootloader interface driver is required if not installed already.

good luck

 

[jonchance_84]

I just bought 4 micro USB to type c usb adapters from Walmart's website for 7 dollars. I can use all of my previous cables from my old phones. I haven't had one issue with them and my old fast charger from my Nexus 6 works and charges the phone rapidly. It's kinda clunky but beats spending 30 bucks on 1 cable.

 

[blackknightavalon]

It was a long night and I was on my 5th beer when I typed all that up!

My USB-C cable from OnePlus works fine with this phone on my laptop

 

[Spunkybob]

I'll give it a go, but I'm already using a 3rd party usb3 to typeC... I could try with the stock USBC cable as my desktop has one?

The phone is receiving the command from the PC because no matter what fastboot comment I type the second I hit enter it goes to this same screen.

ABD commands work perfectly though, just fastboot has this issue.

Can't wait for TWRP.

Sent from my Phone 2 using Tapatalk

 

[jal3223]

I'll give it a go, but I'm already using a 3rd party usb3 to typeC... I could try with the stock USBC cable as my desktop has one?

The phone is receiving the command from the PC because no matter what fastboot comment I type the second I hit enter it goes to this same screen.

ABD commands work perfectly though, just fastboot has this issue.

Can't wait for TWRP.

I believe TWRP has already been released. Check the new kernel thread in the Development section. He states that by flashing his kernel, TWRP is also installed along side it. I haven't tested myself yet though.

 

[Spunkybob]

I believe TWRP has already been released. Check the new kernel thread in the Development section. He states that by flashing his kernel, TWRP is also installed along side it. I haven't tested myself yet though.

Don't I need to use fastboot to flash the kernel :-/

Sent from my Phone 2 using Tapatalk

 

[capxcom]

have you solved this problem?

So ive upgraded to 9 but I dont like it... volume menus changed, wifi keeps dropping out (even after disabling auto turn on) etc. and I was very happy with 8.
I've been following the instructions from the Razor site to downgrade but whenever i run a fastboot command from the bootloader it just changes to the "powered by android" screen with a tiny "Press any key to shutdown" at the top.

Has anyone been able to do this successfully?

I've used fastboot and ADB a lot in the past so no idea why its doing this.

I am in the same ****.I think we not only need to unlock the bootloader but also need to unlock the critical.But none knows how to unlock the critical.I am stuck in here too.Hate this stupid phone.

 

[Ventigo]

I am in the same ****.I think we not only need to unlock the bootloader but also need to unlock the critical.But none knows how to unlock the critical.I am stuck in here too.Hate this stupid phone.

fastboot flashing unlock_critical doesn't work for you?

 

[capxcom]

fastboot flashing unlock_critical doesn't work for you?

Finally it works!I tried handurds of times,every time I enter flash unlock critical the phone will show up that tiny message on the top left press any key to shut down.I was thinking about selling this phone,then I changed the USB a-c cable and tried with a different USB port,and suddenly it worked!
I flashed the latest stock firmware and the new customised kernel,now it works great! The battery draining is normal I only need to charge it once a day

 

[Lucifer6]

Finally it works!I tried handurds of times,every time I enter flash unlock critical the phone will show up that tiny message on the top left press any key to shut down.I was thinking about selling this phone,then I changed the USB a-c cable and tried with a different USB port,and suddenly it worked!
I flashed the latest stock firmware and the new customised kernel,now it works great! The battery draining is normal I only need to charge it once a day

What did you do differently? I still get the same little text at the top which says press any key to shutdown after any fastboot command. Please help me because I'm so frustrated with this issue.

 

[capxcom]

What did you do differently? I still get the same little text at the top which says press any key to shutdown after any fastboot command. Please help me because I'm so frustrated with this issue.

Change the USB cable and try a different USB port,I think that may work for you.good luck!

 

[Lucifer6]

Change the USB cable and try a different USB port,I think that may work for you.good luck!

I've tried that with 3 different cables across 6 different usb ports on 2 diff computers and nothing seems to work.. which way worked for you? or what fastboot command did you do that was successful?

 

[capxcom]

I've tried that with 3 different cables across 6 different usb ports on 2 diff computers and nothing seems to work.. which way worked for you? or what fastboot command did you do that was successful?

I just use a different cable and a different USB port , which I did all this before and it didn't work,but I don't know why it worked this time.
I just use the command" xxx\fastboot flash unlock_critical"(hope I memories this right,better find it on the Razer website),the same command with the Razer phone 1 which is posted on Razer official website .You have to unlock the bootloader first just like the Razer phone 1, the only difference is you don't need to unlock the bootloader by typing unlock bootloader on the pc ,you can just operate on the phone to unlock bootloader by pressing the "unlock the bootloader "in the bootloader interface.
When you use the command to unlock the critical ,it might let you to select yes on the phone's bootloader interface ,you can also see it on the CMD of you pc,it say something like xxx success,and if you run the command again it will say something like " unlock failed (already unlocked)"
Then you can try with flashing the stock firmware to see if you unlock the critical successfully,if you can flash the stock firmware then you can use any fast boot command on this phone .I installed the costume kernel right after I flashed the stock firmware.it works like charm.:fingers-crossed:
now the phone never get over heating again and the battery can last a whole day under my havey use.

---------- Post added at 07:47 AM ---------- Previous post was at 07:35 AM ----------

I've tried that with 3 different cables across 6 different usb ports on 2 diff computers and nothing seems to work.. which way worked for you? or what fastboot command did you do that was successful?

Maybe you can also try to install the right bootloader driver which can be found on Razer website ,just check the official tutorial about flashing the stock firmware for Razer phone 1.
The bootloader driver is different from the adb diver.Better do everything exactly the same as it says in that tutorial step by step.

 

[Spunkybob]

I am in the same ****.I think we not only need to unlock the bootloader but also need to unlock the critical.But none knows how to unlock the critical.I am stuck in here too.Hate this stupid phone.

Edit: my phone didn't load newer posts

For everyone else, I was able to do this at work yesterday and I'm back on 8 and loving it.

Edit 2: it was either the different cable (same one as at home just lives at work) or the laptop did something different.

Sent from my Phone 2 using Tapatalk

 

[Spunkybob]

I've tried that with 3 different cables across 6 different usb ports on 2 diff computers and nothing seems to work.. which way worked for you? or what fastboot command did you do that was successful?

Hey mate, for me I think the issue was that first I installed the fastboot drivers on my desktop then when I changed her it to the bootloader driver it didn't take correctly.

I'll clear out my driver cache on the PC and try the correct driver and see if it fixs the issue there.

Sent from my Phone 2 using Tapatalk

 

[capxcom]

Hey mate, for me I think the issue was that first I installed the fastboot drivers on my desktop then when I changed her it to the bootloader driver it didn't take correctly.

I'll clear out my driver cache on the PC and try the correct driver and see if it fixs the issue there.

Just follow this instruction to install the driver .
https://s3.amazonaws.com/cheryl-fac...stall_Android_Fastboot_Drivers_on_Windows.pdf

If you can install the stock firmware you should be able in use any fast boot command

 

[Spunkybob]

Just follow this instruction to install the driver .
https://s3.amazonaws.com/cheryl-fac...stall_Android_Fastboot_Drivers_on_Windows.pdf

I've already done it just saying what my issue was.

Sent from my Phone 2 using Tapatalk

 

[capxcom]

I've already done it just saying what my issue was.

Good for you!
I'm suggesting everyone to unlock the bootloader and the critical first before start to use it.My last RP2 can't start up ,it will freeze on the starting screen as I didn't do anything before using it,I can't do anything with it as the locked bootloader.Lucky for me,I returned it and then I bought a new one .I love this hardware but Razer's software team should be fired !Just hire someone from xda should work perfectly:laugh: