Unbrick your dead-boot lumia... WITHOUT JTAG!

[gmirz2005]

Hi
I'm in the below situation:
https://forum.xda-developers.com/showpost.php?p=77151585&postcount=758
I tried your method with a standard USB cable. I removed my lumia 1020 cover, than I detached and attached the battery.
After that, inserting the USB cable in the PC Type-A Port and shorting green and black lines, I inserted the cable into Lumia 1020 microUSB .
The Windows logo lighted up permanently (good) but after 10 or more seconds, removing the USB modified cable and connecting a standard cable (or unshorting green and black lines) I cannot see any significant effect: the phone is recognized again as a standard USB device, but no QUALCOMM device, so I cannot flash it with thor2 that is not able to recognize any device. The PC Qualcomm drivers are installed. WDRT (related to thor2) as usual is unusable. I tried some variants, pushing start button and than volume+start during the process, but no changes.
Any suggestions?

Regards

You may need to:
1. Remove the battery of the phone
2. Wait 1 minute and reconnect the battery
3. Connect the modified cable to PC but not to the phone
4. Short the wires
5. Now connect the modified cable to the lumia
6. Now Windows will start installing drivers
It may get detected as USB Input device, that means that the device is in QUALCOMM Modem Mode, I still dont know what to do about that and I am doing researches.

 

[mydarkglobe]

You may need to:
1. Remove the battery of the phone
2. Wait 1 minute and reconnect the battery
3. Connect the modified cable to PC but not to the phone
4. Short the wires
5. Now connect the modified cable to the lumia
6. Now Windows will start installing drivers
It may get detected as USB Input device, that means that the device is in QUALCOMM Modem Mode, I still dont know what to do about that and I am doing researches.

Thanks for your reply.
No effects... if I leave the green and black line shorted and attach the microUSB cable to my Lumia, the PC is not able to recognize any new periferal. The phone Windows logo lights up and after about 15 seconds it turns off.
When I unshort the 2 lines, the PC says that there's an "unknown USB device" and after some seconds it becomes a generic "USB Input device".
No other signs of life. :-/

 

[gmirz2005]

Thanks for your reply.
No effects... if I leave the green and black line shorted and attach the microUSB cable to my Lumia, the PC is not able to recognize any new periferal. The phone Windows logo lights up and after about 15 seconds it turns off.
When I unshort the 2 lines, the PC says that there's an "unknow USB device" and after some seconds it becomes a generic "USB Input device".
No other signs of life. :-/

Great! It means you got a connection!
Your phone is in QUALCOMM Modem Mode...
It means that your boot is totally damaged...
But I still don't have solution to that problem...
I am doing some research and I think you may do it too.

 

[Tiago117]

There is a command on thor 2 (Device authentication: thor2 -mode rnd -do_authentication -sdauthenticationtype production). Do you know how this command works? Could I use it to generate a new certificate?
I can't find on the internet how to use this command but it looks like it could help.
Thanks.

 

[EndersKeyboard]

I'm in the same situation as you Tiago.

I can confirm that my phone, plugged to a linux is recognised as a "Qualcomm, Inc. Gobi Wireless Modem (QDL mode)"

 

[rafi kn]

I'm in the same situation as you Tiago.

I can confirm that my phone, plugged to a linux is recognised as a "Qualcomm, Inc. Gobi Wireless Modem (QDL mode)"

Not detected in my case..

 

[gmirz2005]

Not detected in my case..

Maybe your phone is really busted?
You may go to a service center for a JTAG

 

[dogenumberpi]

I don't even own this phone, but this post really seems like an april fools post, yet it's not. lucky for you guys to get to boot a dead device.

 

[gmirz2005]

I don't even own this phone, but this post really seems like an april fools post, yet it's not. lucky for you guys to get to boot a dead device.

haha thanks

 

[Tiago117]

I don't even own this phone, but this post really seems like an april fools post, yet it's not. lucky for you guys to get to boot a dead device.

What are you talking about?

 

[Tiago117]

Well, my phone was sent to be repaired via JTAG and it didn't work. The guy said the boot on the CPU was corrupted and there was no fix. He tried everything he could and he's a member of this forum: http://forum.gsmhosting.com/vbb/
He also said that this is a problem with Lumias, where this happens and there is no fix for it. Have you guys heard the same? Is this a problem you're familiar with?

 

[dogenumberpi]

Well, my phone was sent to be repaired via JTAG and it didn't work. The guy said the boot on the CPU was corrupted and there was no fix. He tried everything he could and he's a member of this forum: http://forum.gsmhosting.com/vbb/
He also said that this is a problem with Lumias, where this happens and there is no fix for it. Have you guys heard the same? Is this a problem you're familiar with?

From my experience, having someone use words as simplistic as a "corrupted" CPU only means they have no idea what they're talking about.

 

[Tiago117]

From my experience, having someone use words as simplistic as a "corrupted" CPU only means they have no idea what they're talking about.

Well, one store told me it was a corrupted memory and another told me it was a corrupted boot on the CPU. They both used JTAG with different boxes and since it's been a while since Windows Phone has been in use, I'm not sure it's worthwhile to continue trying to fix this.

 

[javirix]

Lumia totally breadked. RDC certificates erased. DEVICE AUTHENTICATION IS REQUIRED.

Well, one store told me it was a corrupted memory and another told me it was a corrupted boot on the CPU. They both used JTAG with different boxes and since it's been a while since Windows Phone has been in use, I'm not sure it's worthwhile to continue trying to fix this.

Dear Tiago,

Did you finally recover your Lumia device?

Unfortunately I have the same problem as you. :crying:

Everything happened because I followed a guideline to make a backup/restore of my dear Lumia device to recover the WhatsApp messages (as after last 14th of January 2020 the app stopped to work). Unfortunately, I did a big mistake in the restore process and I erased the partition where the RDC certificates were saved. Unfortunately, I did not save them before. And what is worst, for a strange reason, my previous full backup is corrupt. So each time that I try to reboot the Lumia device, I'm totally stuck in the big Nokia logo screen, and after a while I get the infamous message "ERROR: Unable to find a bootable option. Press any key to shut down.".

To recover my dear Lumia, I tried all the possible options that I found in Internet with Thor2, WDR and WPInternals, but no way, I always get the same messages as you "DEVICE AUTHENTICATION IS REQUIRED TO PERFORM THIS OPERATION". For sure it is related with the lack of the RDC certificates because the messages are very clear "PLEASE ENSURE THAT RDC CERTIFICATE HAS BEEN INSTALLED ON THIS DEVICE AND TRY AGAIN" or also "Cannot flash partition image. Write the RDC into the device or use open/RnD HW & SW".

I have read all your posts about the same problem but I think nobody answered you with any valid solution, isn't it?

Did you finally find a solution or unfortunately your Lumia device is also totally bricked?

Thank you in advance for any answer.

 

[Tiago117]

Dear Tiago,

Did you finally recover your Lumia device?

Unfortunately I have the same problem as you. :crying:

Everything happened because I followed a guideline to make a backup/restore of my dear Lumia device to recover the WhatsApp messages (as after last 14th of January 2020 the app stopped to work). Unfortunately, I did a big mistake in the restore process and I erased the partition where the RDC certificates were saved. Unfortunately, I did not save them before. And what is worst, for a strange reason, my previous full backup is corrupt. So each time that I try to reboot the Lumia device, I'm totally stuck in the big Nokia logo screen, and after a while I get the infamous message "ERROR: Unable to find a bootable option. Press any key to shut down.".

To recover my dear Lumia, I tried all the possible options that I found in Internet with Thor2, WDR and WPInternals, but no way, I always get the same messages as you "DEVICE AUTHENTICATION IS REQUIRED TO PERFORM THIS OPERATION". For sure it is related with the lack of the RDC certificates because the messages are very clear "PLEASE ENSURE THAT RDC CERTIFICATE HAS BEEN INSTALLED ON THIS DEVICE AND TRY AGAIN" or also "Cannot flash partition image. Write the RDC into the device or use open/RnD HW & SW".

I have read all your posts about the same problem but I think nobody answered you with any valid solution, isn't it?

Did you finally find a solution or unfortunately your Lumia device is also totally bricked?

Thank you in advance for any answer.

I replaced the motherbard with one from eBay. It worked. Software fixes did nothing. JTAG also didn't work.

 

[javirix]

I replaced the motherbard with one from eBay. It worked. Software fixes did nothing. JTAG also didn't work.

Thank you for your quick answer. :good:

It is really sad that no solution is possible with some Thor2 commands to solve this RDC authentication issue . :crying:

Thanks again for the answer.

 

[gmirz2005]

Yes.... Not everything is possible without NOKIA's authorized software and tools.

 

[javirix]

Yes.... Not everything is possible without NOKIA's authorized software and tools.

Yes, you are right Yerevan, it is really a pity.

This weekend I have been able to recover an EFIESP backup that I did some weeks ago with WPInternals but after mounting it, I don't find any trace of the RDC file. Probably it is saved in its own separate partition that is not saved with WPInternals backup process. So unfortunately it is clear that I have totally lost my dear Lumia. :crying:

 

[gmirz2005]

EVERYBODY! IMPORTANT NEWS. EVERYONE KNOWS THAT THERE IS A PIN ON THE MOTHERBOARD THAT NEEDS TO BE SHORTED SO THAT THE DEVICE IS FORCEFULLY GONE TO THE EMERGENCY DOWNLOAD MODE. THERE IS NO PIN, THERE IS A RESISTOR. IT IS THE R3209 RESISTOR! FIND THE SCHEMATICS OF YOUR DEVICE, FIND WHERE IS IT, IT MUST BE NEAR THE EMMC CHIP! CONNECT THE USB TO THE PHONE BUT NOT TO THE COMPUTER! SHORT THE RESISTOR AND WHILE SHORTING, CONNECT IT TO THE COMPUTER AND AFTER 2 SECONDS, REMOVE THE SHORT! THE DEVICE SHOULD BE DETECTED IN 9008 QDLOAD MODE! OPEN WDRT AND START RESTORING. AFTER IT IS FINISHED AND THE DEVICE NEEDS TO BE REBOOTED, DON'T REMOVE THE CABLE NEITHER FROM THE COMPUTER NEITHER FROM THE PHONE, INSERT A GOOD, CHARGED BATTERY. IT SHOULD BOOT NOW.... And now... You see the NOKIA logo... You feel the happiness... Now you know... That you successfully brought your superior phone back to life....

 

[gy45213]

EVERYBODY! IMPORTANT NEWS. EVERYONE KNOWS THAT THERE IS A PIN ON THE MOTHERBOARD THAT NEEDS TO BE SHORTED SO THAT THE DEVICE IS FORCEFULLY GONE TO THE EMERGENCY DOWNLOAD MODE. THERE IS NO PIN, THERE IS A RESISTOR. IT IS THE R3209 RESISTOR! FIND THE SCHEMATICS OF YOUR DEVICE, FIND WHERE IS IT, IT MUST BE NEAR THE EMMC CHIP! CONNECT THE USB TO THE PHONE BUT NOT TO THE COMPUTER! SHORT THE RESISTOR AND WHILE SHORTING, CONNECT IT TO THE COMPUTER AND AFTER 2 SECONDS, REMOVE THE SHORT! THE DEVICE SHOULD BE DETECTED IN 9008 QDLOAD MODE! OPEN WDRT AND START RESTORING. AFTER IT IS FINISHED AND THE DEVICE NEEDS TO BE REBOOTED, DON'T REMOVE THE CABLE NEITHER FROM THE COMPUTER NEITHER FROM THE PHONE, INSERT A GOOD, CHARGED BATTERY. IT SHOULD BOOT NOW.... And now... You see the NOKIA logo... You feel the happiness... Now you know... That you successfully brought your superior phone back to life....

may i know also work to when lumia 1020 show error: Unable to find a bootable option. press any key to shutdown?