Pixel 4 bootloader issue - Google Pixel 4 Questions & Answers

Hi All; my pixel 4 test phone got unhappy. I was trying to reinstall twrp and screwed up. So now when I try to boot I get the screen below. And nothing seems to work, any idea on what to try? ADB and fast boot don't respond. Dmesg show the device is enumerated.
[950748.188201] usb 3-1: new high-speed USB device number 5 using xhci_hcd
[950749.179852] usb 3-1: New USB device found, idVendor=18d1, idProduct=4ee0, bcdDevice= 1.00
[950749.179860] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[950749.179863] usb 3-1: Product: Pixel 4
[950749.179866] usb 3-1: Manufacturer: Google
[950749.179869] usb 3-1: SerialNumber: 9B061FFAZ**0**2
Thanks for any advice. Is there a jtag pinout?

burntpuppy said:
Hi All; my pixel 4 test phone got unhappy. I was trying to reinstall twrp and screwed up. So now when I try to boot I get the screen below. And nothing seems to work, any idea on what to try? ADB and fast boot don't respond. Dmesg show the device is enumerated.
[950748.188201] usb 3-1: new high-speed USB device number 5 using xhci_hcd
[950749.179852] usb 3-1: New USB device found, idVendor=18d1, idProduct=4ee0, bcdDevice= 1.00
[950749.179860] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[950749.179863] usb 3-1: Product: Pixel 4
[950749.179866] usb 3-1: Manufacturer: Google
[950749.179869] usb 3-1: SerialNumber: 9B061FFAZ**0**2
Thanks for any advice. Is there a jtag pinout?
Click to expand...
Click to collapse
Did you try flashing the factory Google image back to the phone?
burntpuppy said:
Hi All; my pixel 4 test phone got unhappy. I was trying to reinstall twrp and screwed up. So now when I try to boot I get the screen below. And nothing seems to work, any idea on what to try? ADB and fast boot don't respond. Dmesg show the device is enumerated.
[950748.188201] usb 3-1: new high-speed USB device number 5 using xhci_hcd
[950749.179852] usb 3-1: New USB device found, idVendor=18d1, idProduct=4ee0, bcdDevice= 1.00
[950749.179860] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[950749.179863] usb 3-1: Product: Pixel 4
[950749.179866] usb 3-1: Manufacturer: Google
[950749.179869] usb 3-1: SerialNumber: 9B061FFAZ**0**2
Thanks for any advice. Is there a jtag pinout?
Click to expand...
Click to collapse
Did you try flashing the Google stock factory image?

I cant seem to get anything other than that screen, phone doesn't show up in adb devices, or in fastboot devices. I've p
ulled the battery, and finally the fastboot devices showed the pixel

burntpuppy said:
I cant seem to get anything other than that screen, phone doesn't show up in adb devices, or in fastboot devices. I've p
ulled the battery, and finally the fastboot devices showed the pixel
Click to expand...
Click to collapse
If it's detecting the device your fine. Go here, https://flash.android.com/build/7005429?target=flame-user&signed. and re-flash the firmware and you will be good to go.

I reflashed boot.img to slots A and B, and system.img to system. Now I get "Failed to load/verify boot image". Still no adb but fast boot is now working

burntpuppy said:
I reflashed boot.img to slots A and B, and system.img to system. Now I get "Failed to load/verify boot image". Still no adb but fast boot is now working
Click to expand...
Click to collapse
You need to re-flash everything. It should do all the work for you. Maybe you flashed the wrong boot.img? Here is the main page for all devices. https://developers.google.com/android/images Select your device, you can choose flash and it will do it all for you or you can download the image, extract it all to your adb folder, double click flash-all and it should flash everything on its own.

Related

Problem: Bootloader won't connect via USB, won't load from MicroSD

Hi,
From the bootloader I am unable to connect via USB or to flash from MicroSD.
I am running SPL-2.08.000 8G XE
I have magldr version 1.11 installed with a cyaogen mod 7 running on top of that.
On the PC, I am running Windows 7 x64.
When I run the bootloader (pwr on + hold vol dn) it says serial at the bottom and when I connect it to the Win7 machine one of three things happens.
1) Nothing.
2) On the Windows Desktop I get a message that "USB Device not Recognized"
3) On the phone, I get a white only bottom (no Serial or USB message)
This happens with both the routine to "disable drivers signature" by pressing F8, and without doing that.
I have also removed Windows Mobile Device Center 6.1 and the drv update. It still will not load. I have tried the AS drivers for Win7x64 and it says "no driver for this device found in this folder".
One possible solution was to flash the rom, via the MicroSD card, by renaming a .nbh to LEOIMG.nbh. However, I have tried several roms (1.66 roms, windows 6.5 roms, magldr 1.12 and magldr 1.13 nbhs) yet, the phone goes grey and says "Loading..." but nothing happens.
I am genuinely stuck.
I've been through a million forums and I can't seem to find a solution to my problem. As you can see I have tried several different solutions that I have found but none have worked.
My aim is to update magldr to ver 1.13 and load a newer rom.
Thank you,
P
"USB Device not Recognized"
This usually happens when cable is faulty or the jack.
It also happens when the phone is unresponsive.
crush said:
"USB Device not Recognized"
This usually happens when cable is faulty or the jack.
It also happens when the phone is unresponsive.
Click to expand...
Click to collapse
It charges... how else can I test the cable? Or the jack on the phone?
//edit: I have a spare cable and have tested it. It is not the cable. I have also cleaned the jack. A wiggle of the jack does not yeild any difference.
I went into Linux on my machine and ran
[email protected]:~$ dmesg | tail
[ 253.644057] usb 3-1: device descriptor read/64, error -62
[ 253.888054] usb 3-1: device descriptor read/64, error -62
[ 254.128061] usb 3-1: new low speed USB device using ohci_hcd and address 11
[ 254.269065] usb 3-1: device descriptor read/64, error -62
[ 254.512059] usb 3-1: device descriptor read/64, error -62
[ 254.752054] usb 3-1: new low speed USB device using ohci_hcd and address 12
[ 255.160725] usb 3-1: device not accepting address 12, error -62
[ 255.296064] usb 3-1: new low speed USB device using ohci_hcd and address 13
[ 255.705054] usb 3-1: device not accepting address 13, error -62
[ 255.705095] hub 3-0:1.0: unable to enumerate USB device on port 1
What I suppose is really unusual is that this has happened AND I'm unable to flash via MicroSD.
P
ok,
Are you using front USB port? if yes then try different port at back.
Because its strange on some motherboards that it stop reading properly from front usb's :-S this happened to me with my panasonic camera which wasn't readable at front but did work on back.
for more info you can goto these link
http://www.linux-usb.org/FAQ.html#ts6

[Q] [Help] Possible bricked Nexus 7 after 4.2 stock update

Hi all,
I'm really hoping someone can help.
This morning I applied the stock Google 4.2 (JOP40C) update from Google's factory images page using the supplied flash-all.sh script. The tablet applied the update, rebooted - and then I saw an error message saying an app had crashed, I believe it was the launcher but basically ignored it, and after pressing "okay" a few times I just held the power button until the power off dialog came up and I turned the tablet off.
Now it won't turn back on. I've tried the long-press method (I've tried 30 seconds, 1 minute, whilst plugged in to the mains, whilst plugged in to USB, volume up/down buttons held and not held) but so far it's as dead as a can of spam. I gave it a two hour charge on a wall charger, still no difference.
When attempting a stock flash / debrick via fastboot, fastboot just says "waiting for device" and waits forever. That's the same on Windows and on Linux, both systems usually work fine with ADB and fastboot.
When connected via USB to my Ubuntu PC, dmesg says:
Code:
[15660.333585] usb 3-1: new high-speed USB device number 4 using xhci_hcd
[15665.328725] xhci_hcd 0000:03:00.0: Timeout while waiting for address device command
[15670.527680] xhci_hcd 0000:03:00.0: Timeout while waiting for address device command
[15670.731479] usb 3-1: device not accepting address 4, error -62
[15670.731578] xhci_hcd 0000:03:00.0: Bad Slot ID 3
[15670.731579] xhci_hcd 0000:03:00.0: Could not allocate xHCI USB device data structures
[15670.731582] hub 3-0:1.0: couldn't allocate port 1 usb_device
[15746.062340] usb 3-1: new high-speed USB device number 5 using xhci_hcd
[15746.080922] usb 3-1: New USB device found, idVendor=0955, idProduct=7330
[15746.080925] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[15746.080926] usb 3-1: Product: APX
[15746.080928] usb 3-1: Manufacturer: NVIDIA Corp.
[15746.080983] usb 3-1: ep 0x81 - rounding interval to 32768 microframes, ep desc says 0 microframes
[15746.080986] usb 3-1: ep 0x1 - rounding interval to 32768 microframes, ep desc says 0 microframes
When attached via USB to my Windows PC, which usually works with Android / fastboot / APX devices just fine, I see an "unknown device" appear, with the status of:
Code:
Windows has stopped this device because it has reported problems. (Code 43)
Now I'm guessing it's dead and time to call Asus, but I wanted to check first. I went to back to the PC World store I bought it from and they say because it's a month old it's not their problem (over 21 days since purchase) so it has to go back to Asus.
Can anyone give any advice? Is there a way of re-flashing the bootloader some how without the need for fastboot? Is there something like nvflash for the N7 (I've seen this mentioned before here but it didn't seem to lead anywhere). Given that I can't get it to respond to fastboot nor ADB and as the screen never comes on I guess it's dead, but I'd welcome any hints before I call Asus - thanks in advance! :good:

[Q] Any way to recover files from S4 with dead screen?

I have an old Canadian Bell based Galaxy s4, with a dead screen. I'd like to try to get files off it, but did not enable usb debugging mode prior to the screen breaking.
Is there any way to access the file system on the phone in this situation? I've done a bit of looking around and can see that I should be able to access it via adb if I have usb debugging turned on, but debugging isn't on in this case.
I have usb connected the phone to my fedora machine and can see via dmesg that it does get detected. I can hear the thing start up, but beyond that I can't see anything else.
Googling around it sounds like I should be able to load a recover kernel, with debugging turned on if I use the right process, but I can't find enough into to get me going.
dmesg output is below just in case it helps...
.....................................................................................
[ 4104.343749] usb 2-2: USB disconnect, device number 6
[ 4180.261104] usb 2-2: new high-speed USB device number 7 using ehci-pci
[ 4180.376385] usb 2-2: New USB device found, idVendor=04e8, idProduct=6860
[ 4180.376390] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 4180.376394] usb 2-2: Product: SAMSUNG_Android
[ 4180.376396] usb 2-2: Manufacturer: SAMSUNG
[ 4180.376399] usb 2-2: SerialNumber: ........
Any help is much appreciated!
If you can get a custom recovery on you can use adb without use debugging on. I assume you have an i337m. Try this with twrp http://galaxys4root.com/clockworkmodtwrp-recoveries/
Sent from my Nexus 9 using XDA Free mobile app
If you have a custom recovery plug it up to hdmi thru HML and use the TV for the screen. Hopefully the touchscreen still works. This worked for mine. No lcd but the digitizer was still good.

Is it be possible to install an OTA update on a phone with TWRP, without using USB?

Either all my USB-A to USB-C cables are broken, or the USB-C on my Nexus 6P is broken. In any case, I cannot detect my phone from my computer. When I connect it I get
Code:
[319203.836580] usb 3-2: new full-speed USB device number 18 using xhci_hcd
[319203.949925] usb 3-2: device descriptor read/64, error -71
[319204.173299] usb 3-2: device descriptor read/64, error -71
So, the question is: Is there any way to install an OTA update without using the cable? I have tried to install it from the update menu under "about", but it reboots directly to TWRP, so does not work.
Any clues?
Are you rooted? If so, you could try FlashFire.
Yes, I am. Thank you! That is exactly what I was looking for. I'll try it and let you know whether it worked or not.
Update: I worked like a charm. I will buy the pro version just to support the developer for his amazing job.

Xiaomi Mi Smart Clock

I've bought one Mi Smart Clock. I love this device: so compact, nice and solid design, a 4inch LCD screen, WiFi and BT capabilities.
There's "too much google" for me, so i'm wondering if it's possible to hack it and run a custom firmware.
Connecting an USB on boot, firstly i got a MediaTek MT65xx Preloader:
Code:
usb 2-2: new high-speed USB device number 22 using xhci_hcd
usb 2-2: New USB device found, idVendor=0e8d, idProduct=2000, bcdDevice= 1.00
usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-2: Product: MT65xx Preloader
usb 2-2: Manufacturer: MediaTek
cdc_acm 2-2:1.0: Zero length descriptor references
cdc_acm: probe of 2-2:1.0 failed with error -22
cdc_acm 2-2:1.1: ttyACM0: USB ACM device
usb 2-2: USB disconnect, device number 22
that send a lot of "READY" to /dev/ttyACM0 device.
After few seconds, it disconnect and connect a:
Code:
usb 2-2: new high-speed USB device number 7 using xhci_hcd
usb 2-2: New USB device found, idVendor=0e8d, idProduct=2008, bcdDevice= 2.23
usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 2-2: Product: X04G
usb 2-2: Manufacturer: Xiaomi
but i was not able to do something more that configure it as firmware allow.
Anyone already did something? There's any team/group/someone else interested in build an hack for this nice device?
Thanks for any help, really appreciated!
I bought the Chinese version, and its model is slightly different from yours. It is said that this is the overseas version of the Chinese version. I compiled a twrp for this device, not sure if it will work on yours.
GitHub - MaxCaiLC/twrp_xiaomi_lx04_device_tree
Contribute to MaxCaiLC/twrp_xiaomi_lx04_device_tree development by creating an account on GitHub.
github.com
Can you back up your firmware with mtkclient and send it to me? I am interested in this model.
Is there a way to add a custom alarm sound?
Hi!...I also have a LX04 version of the firmware, have you been able to extract the X04G version to be able to update the firmware???
MaxCaiLC said:
I bought the Chinese version, and its model is slightly different from yours. It is said that this is the overseas version of the Chinese version. I compiled a twrp for this device, not sure if it will work on yours.
GitHub - MaxCaiLC/twrp_xiaomi_lx04_device_tree
Contribute to MaxCaiLC/twrp_xiaomi_lx04_device_tree development by creating an account on GitHub.
github.com
Can you back up your firmware with mtkclient and send it to me? I am interested in this model.
Click to expand...
Click to collapse
Did you get the firmware version with google assistant?
TIA
Jordi EscolĂ  said:
Hi!...I also have a LX04 version of the firmware, have you been able to extract the X04G version to be able to update the firmware???
Click to expand...
Click to collapse
I have a device with x04g firmware on it. How can i extract the firmware?

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