Can't enter bootloader - HD7 Q&A, Help & Troubleshooting

Can't enter bootloader - HD7 Q&A, Help & Troubleshooting

Hi,
I can't enter bootloader in my phone. It doesn't react on pressing vol down + power.
It only goes to screen which depicts the phone and computer icon (similar like updating thru Zune but the cable is not connected on the picture to the computer).
Also after normal powering on the phone goes to the same screen. Any ideas?
After flashing using Y-cable + Goldcard + USB Host Mode phone writes that flash was succesful, but after reboot it is the same.
SPL 1.54

Related

pls tell me the difference between USB loader mode,USB host mode and Bootloader mode

guys
pls help me in differentiating..
USB HOST MODE
USB LOADER MODE
BOOTLOADER MODE
my htc hd7s has semi bricked bootloader.. and i am not able to get into usb host mode or usb loader mode.
pls provide me the images in which i can differentiate these three.
when I press power + vol down + camera button at same time i got multicoloured blank screen with one line written on top
when i press power down + camera at same time i got screen with windows mobile shows with cable disconnected with laptop..
pls help me to repair my bootloader
thanks

aakashvijay said:
guys
pls help me in differentiating..
USB HOST MODE
USB LOADER MODE
BOOTLOADER MODE
my htc hd7s has semi bricked bootloader.. and i am not able to get into usb host mode or usb loader mode.
pls provide me the images in which i can differentiate these three.
when I press power + vol down + camera button at same time i got multicoloured blank screen with one line written on top
when i press power down + camera at same time i got screen with windows mobile shows with cable disconnected with laptop..
pls help me to repair my bootloader
thanks
Click to expand...
Click to collapse
Bootloader mode is the tri-colored screen, that gives you your devices MID (model ID), SPL version, Partition info and some other information. It's like safe mode for your device and can be used to flash stock,/shipped roms and custom roms with a RUUwrapper.
To enter bootloader mode - power off the device, press and hold down the volume down button and power the device back on while continuing to hold down the volume down button.
USB host mode and USB loader mode are the samething. This is the screen with an image of the device being connected to the PC.
This is used for updating the device through Zune and when using the goldcard/ Y cable method to flash stock/shipped roms.
To enter USB host mode - power off the device, press and hold down the volume down button and camera button together and power the device back on while continuing to hold down the volume down and camera button, it will go to the bootloader screen for a second then to USB host mode, so keep holding the volume down and camera button until it goes to USB host mode.
Basically this is the steps that you will need to do to repair your bootloader.and install a custom rom if you want.
Make the Y cable - Make sure it's wired correctly and not too long in length or it might not the transfer data properly.
Download the Pre-NoDo/NoDo rom specific for your device, extract the ruu_sighned.nbh and rename it to SCHUIMG.nbh - Put it on a clean/wiped SD card thats formated to Fat32, launch goldcard tool, select and patch the SCHUIMG.nbh
Enter USB host mode - Make the proper Y cable connections and the flash process will start automatically. This will downgrade your SPL.
Enter bootloader mode and make sure your SPL is at or under 3.xxx, which is required to install RSPL/HSPL, if it is,
While in bootloader mode, Install RSPL/HSPL from DFT - Follow the prompts on the screen and choose the closest match of RSPL/HSPL to that of your devices new SPL from the RSPL/HSPL wizard. So if SPL is 3.1 then choose RSPL/HSPL 3.1
Make sure RSPL/HSPL installed properly, while in BL mode it will say RSPL/HSPL by "Cotulla"
I prefer HSPL, it makes it easier to install rom updates or a whole new rom if wanted.
Choose the custom rom that you want. Download and unzip all the contents of the zip file, enter BL mode and connect device to PC via USB cable, the white section should change from serial to USB, click drag and drop the .nbh file to the ruuwrapper.exe and the ruuwrapper will open, follow the prompts on the screen and your done.
If you need any help just let me know!

xdrc45 said:
Bootloader mode is the tri-colored screen, that gives you your devices MID (model ID), SPL version, Partition info and some other information. It's like safe mode for your device and can be used to flash stock,/shipped roms and custom roms with a RUUwrapper.
To enter bootloader mode - power off the device, press and hold down the volume down button and power the device back on while continuing to hold down the volume down button.
USB host mode and USB loader mode are the samething. This is the screen with an image of the device being connected to the PC.
This is used for updating the device through Zune and when using the goldcard/ Y cable method to flash stock/shipped roms.
To enter USB host mode - power off the device, press and hold down the volume down button and camera button together and power the device back on while continuing to hold down the volume down and camera button, it will go to the bootloader screen for a second then to USB host mode, so keep holding the volume down and camera button until it goes to USB host mode.
Basically this is the steps that you will need to do to repair your bootloader.and install a custom rom if you want.
Make the Y cable - Make sure it's wired correctly and not too long in length or it might not the transfer data properly.
Download the Pre-NoDo/NoDo rom specific for your device, extract the ruu_sighned.nbh and rename it to SCHUIMG.nbh - Put it on a clean/wiped SD card thats formated to Fat32, launch goldcard tool, select and patch the SCHUIMG.nbh
Enter USB host mode - Make the proper Y cable connections and the flash process will start automatically. This will downgrade your SPL.
Enter bootloader mode and make sure your SPL is at or under 3.xxx, which is required to install RSPL/HSPL, if it is,
While in bootloader mode, Install RSPL/HSPL from DFT - Follow the prompts on the screen and choose the closest match of RSPL/HSPL to that of your devices new SPL from the RSPL/HSPL wizard. So if SPL is 3.1 then choose RSPL/HSPL 3.1
Make sure RSPL/HSPL installed properly, while in BL mode it will say RSPL/HSPL by "Cotulla"
I prefer HSPL, it makes it easier to install rom updates or a whole new rom if wanted.
Choose the custom rom that you want. Download and unzip all the contents of the zip file, enter BL mode and connect device to PC via USB cable, the white section should change from serial to USB, click drag and drop the .nbh file to the ruuwrapper.exe and the ruuwrapper will open, follow the prompts on the screen and your done.
If you need any help just let me know!
Click to expand...
Click to collapse
thanks for replying ...
in my case when i press vol down and camera button and then power button its starts in to four coloured screen
Red, green blue and white. Red side written PD29150 SS-BC (4k)
green, blue and white empty
i continue pressing vol down and camera button but notthing happens...
when i press camera button and power button it goes to usb host mode with wm mobile not connected tp laptop
screen.. (wm not connected to laptop screen.) means it asks to connect it to pc.
pls reply soon...

aakashvijay said:
thanks for replying ...
in my case when i press vol down and camera button and then power button its starts in to four coloured screen
Red, green blue and white. Red side written PD29150 SS-BC (4k)
green, blue and white empty
i continue pressing vol down and camera button but notthing happens...
when i press camera button and power button it goes to usb host mode with wm mobile not connected tp laptop
screen.. (wm not connected to laptop screen.) means it asks to connect it to pc.
pls reply soon...
Click to expand...
Click to collapse
Well your device is definitely bricked if your only getting one line of info in the bootloader screen.
It's weird that the key/button combinations are backwards. If I just hold down my camera button on my device it goes into USB host mode also.
I would just go into USB host mode holding down the camera button and then use the goldcard/ Y cable method to flash a stock/shipped rom and repair the bootloader.

Well you guys have it all wrong, for HTC HD7S the only way to enter USB Host/Loader Mode is to ONLY hold the CAMERA and POWER buttons together, if you also hold the volume down button you'll end up seeing the RGB white bootloader screen.
Have fun with your HTC HD7S everybody!!!
(That is the only way it worked for my HTC HD7S with Windows Phone OS 7.8 on an AT&T branded device)

Cannot Access Android Recovery Mode - Xperia Z1

I have two Xperia Z's , Z1(a) - Display is jet black and sim port broken but phone and touch still function as normal. Bought another broken screen Z1(b) - recovered motherboard to replace Z1a. That worked but now Z1b stuck on pattern screenlock and ebay seller does not want to give me password. I have the old screen with fingerprint smudges and everyday I attempt to crack the pattern lock and phone not blocked as i put sim in and able to call phone and answer..
I have tried connecting Z1b to PC to use Sony Update Service software to restore phone back to factory setting but phone is not recognised or charging by PC (does charge through wall socket and Mac USB port). Run SUS>Press Vol Down Button while connecting USB and LED indicates GREEN then RED but software cannot find phone.
{{Run SUS>Press Vol Up Button while connecting USB and LED indicates solid BLUE LED - not sure what this feature is???}}
So I exchange Z1b motherboard with Z1a and when connected to PC, phone indicates charging and installs a driver to PC. Do a dummy SUS test and phone is found by software allowing option to do a factory reset. Re-exchange back Z1b and still nothing - no charge, not recognised by PC or software - so assume Z1b usb port is faulty.
So read about Android recovery mode but i cannot access recovery mode on either of them - Is recovery mode only available for rooted android phones??? I can only enter safe mode (Power+VolDown) and tried the following options but got no response:
1. Holding Power + VolUp
2. Pressing Vol Up continuously after pressing power button
3. Pressing Vol Down continuously after pressing power button
4. Press all Buttons together.
NEXT STEPS:
1.Connect Z1b to a MacOS 10.6 or later and try SUS and PC companion (i have old Mac 10.4)
Any other help or suggestion??? - many thanks in advance.

Have you installed a recovery?
If not then you cant access something that your phone does not have
You will have to root and install one, just follow the link in my signature to get root on latest KK firmware
PS, wrong section, but I have asked the mods to move it for you

Thanks for your reply.
I thought this was a built in feature on android devices - guess am wrong. I will not be able to install anything if i cannot access phone OS.
Looks like i will have to see if i can reset Z1b through Mac Sony bridge SUS, cough up for USB repair OR by chance crack code.

or just read some "how to" / "Tutorial" / "guides" threads to install recovery. Its very easy.

P990 total dead?

The info:
Windows 7 64bit
LG P990 stuck at a double LG boot screen. The phone enters download mode (pressing Vol down when plugging USB). Windows finds nothing when pressing Vol Up + Vol Down when connecting to USB.
Tried to NV flash but nothing happens which makes sense since windows don't find anything when double pressing the buttons and connecting it. Am I doing something wrong?

Hello,
Have you ever heard about this useful tool? http://forum.xda-developers.com/showthread.php?t=2020737
Repair your device with it. Also you should have installed all of the USB and APX drivers.

Yes I saw that and downloaded it. But my problem is that the PC doesn;t even find the phone connected. I have installed the drivers. And the phone does find the PC because if I only press down button it goes to download mode.

eltarod said:
Yes I saw that and downloaded it. But my problem is that the PC doesn;t even find the phone connected. I have installed the drivers. And the phone does find the PC because if I only press down button it goes to download mode.
Click to expand...
Click to collapse
Use option "Repartition your device....". Follow the instructions.
/*Have you already tried to remove battery before plugging it in to the PC? And while you are plugging it in, you should hold VolDown and VolUp. Screen stays black but PC starts recognizing your device. At least, it works for me.*/

That's my problem...When pressing the buttons and connecting the phone(without battery) the PC (tried 2 systems) finds nothing at all.

My Z2 Pro dead .. help me ..!!

i did something Stupid and my Z2 Pro dead
there is no fast-boot and no recovery .. only black screen and when i press power button there is a short and long vibration just that and the LED there is flash yellow for 0.1 second

aljthab said:
i did something Stupid and my Z2 Pro dead
there is no fast-boot and no recovery .. only black screen and when i press power button there is a short and long vibration just that and the LED there is flash yellow for 0.1 second[/QUOTE try connecting it to the PC, if it doesn't show anything on PC then just hand it over to the lenovo service center and blame it on the device that it stopped booting :silly:. I thought i had bricked my device but they did something and gave it to me in 3 to 4 days and that was done under the warranty no extra charge and don't confess that I had rooted ur device , If u tell them that they will try to extort money from u :crying:
Click to expand...
Click to collapse

aljthab said:
i did something Stupid and my Z2 Pro dead
e LED there is flash yellow for 0.1 second
Click to expand...
Click to collapse
I have exactly the same, what to do? I installed the dev 44, the rate of established but after 15 minutes, logo is stalled, not waiting until the end of excess freewheeling dev 300, it is not fully established and bug crawled, I rebooted the machine and an endless vibration with green LED :crying:
1 Charging can be a little warm
2. can not be detected pc
3. can not access the fastboot mode
4. when charging, the notification light dies
5. deep flash cable has not helped
sorry my bad english

kerei said:
I have exactly the same, what to do? I installed the dev 44, the rate of established but after 15 minutes, logo is stalled, not waiting until the end of excess freewheeling dev 300, it is not fully established and bug crawled, I rebooted the machine and an endless vibration with green LED :crying:
1 Charging can be a little warm
2. can not be detected pc
3. can not access the fastboot mode
4. when charging, the notification light dies
5. deep flash cable has not helped
sorry my bad english
Click to expand...
Click to collapse
Refer to this http://zukfans.eu/community/threads/how-to-unbrick-zuk-z2-from-diagnostic-port-900e.2856/ and this http://zukfans.eu/community/threads/howto-flash-a-stock-zui-rom-zuk-z2-z2131-only.104/

same issue with zuk z2
adriano1593 said:
Refer to this http://zukfans.eu/community/threads/how-to-unbrick-zuk-z2-from-diagnostic-port-900e.2856/ and this http://zukfans.eu/community/threads/howto-flash-a-stock-zui-rom-zuk-z2-z2131-only.104/
Click to expand...
Click to collapse
Hello there... Any solution you found? I am stuck with my zuk z2 in same situation ?? any help ?

I have a similar problem.
What caused the black screen? -
History:
I booted to test mode at 2.5.033 ST, the phone got stucked at this menue there was no way to get out. TWRP Restore to Nandroid bougt only black screen after 2nd vibration and ZUK logo.
I fixed the Test mode bug, by flashing the ZUI 1.9.104 ST Stock ROM via QPST.
After the phone was "repaired" I unlocked the bootloader, installed TWRP, made a nandroid backup of fully stock ROM and restored a nandroid backup from before the test mode problem.
The nandroid restore was successful, I rebooted the phone and it was "dead". Black screen, only rebooting (perioldy vibrating) there was no end, until the battery was empty.
I got no luck to reach any mode with tricky button pressing (vol+ pwr; vol- pwr; vol+ vol- pwr; usb in vol-) nor Windows detecting the phone. That's why I decided to remove the back glass cover, to got access to the battery.
Now I'm able to get the phone detected by my PC.
What I did: disconnect the battery, connect the phone to my computer, pressed the vol- button and connect the battery.
This made my PC able to detect the phone, but no I have an other problem. Windows only detects the phone as "unknown usb device (device descriptor request failed)". I don't know any way to install the driver....
Maybe anyone is able to help me or has any tip?
Thanks!
Cheers,
m_atze

eryenakgun said:
What id shown in unknown device.
Like ven_9102&dev_1234
Maybe with editing quallcom drivers for your device id, you can still install it.
and if luck qpst can recognize it as qualcomm debug mod
Sent from my ZUK Z2121 using Tapatalk
Click to expand...
Click to collapse
Hi,
Thanks for your quick response.
The Hardware ID: USB\DEVICE_DESCRIPTOR_FAILURE
"Error Message": This device has been stopped because it has reported errors. (Code 43)
An error occurred while requesting the USB device descriptor.

m_atze said:
I have a similar problem.
What caused the black screen? -
History:
I booted to test mode at 2.5.033 ST, the phone got stucked at this menue there was no way to get out. TWRP Restore to Nandroid bougt only black screen after 2nd vibration and ZUK logo.
I fixed the Test mode bug, by flashing the ZUI 1.9.104 ST Stock ROM via QPST.
After the phone was "repaired" I unlocked the bootloader, installed TWRP, made a nandroid backup of fully stock ROM and restored a nandroid backup from before the test mode problem.
The nandroid restore was successful, I rebooted the phone and it was "dead". Black screen, only rebooting (perioldy vibrating) there was no end, until the battery was empty.
I got no luck to reach any mode with tricky button pressing (vol+ pwr; vol- pwr; vol+ vol- pwr; usb in vol-) nor Windows detecting the phone. That's why I decided to remove the back glass cover, to got access to the battery.
Now I'm able to get the phone detected by my PC.
What I did: disconnect the battery, connect the phone to my computer, pressed the vol- button and connect the battery.
This made my PC able to detect the phone, but no I have an other problem. Windows only detects the phone as "unknown usb device (device descriptor request failed)". I don't know any way to install the driver....
Maybe anyone is able to help me or has any tip?
Thanks!
Cheers,
m_atze
Click to expand...
Click to collapse
Alright bro, there is one method you can try.
http://zukfans.eu/community/threads/howto-flash-a-stock-zui-rom-zuk-z2-pro-z2121-only.57/
I assume your phone is a brick now. The only method you can use is the 9008 unbrick mode. (AKA QBST)
There are a few things you need to prepare before you save ur phone. U need to download the require application that the website provided above, after you set everything up,
make sure you download the latest 2.5 QBST rom,
http://bbs.lenovomobile.cn/z2pro/t554654/
Because ur phone wont be able to enter 9008 through software, thus u need to do the following.
1. Load the content XML fille,
2.Turn off your phone. After it's fully shutdown
3. press and hold the volume up button for 3 seconds
4. press power button while hold the volume up (press it for 0.5second and keep holding it)
5. after 0.5 seconds, plug in the usb right away
6. the QFIL tool should appear the Qualcomm usb QD loader
7. the download button should turn blue
8. flash it and wait for reboot

OtakuLi said:
Alright bro, there is one method you can try.
http://zukfans.eu/community/threads/howto-flash-a-stock-zui-rom-zuk-z2-pro-z2121-only.57/
I assume your phone is a brick now. The only method you can use is the 9008 unbrick mode. (AKA QBST)
There are a few things you need to prepare before you save ur phone. U need to download the require application that the website provided above, after you set everything up,
make sure you download the latest 2.5 QBST rom,
http://bbs.lenovomobile.cn/z2pro/t554654/
Because ur phone wont be able to enter 9008 through software, thus u need to do the following.
1. Load the content XML fille,
2.Turn off your phone. After it's fully shutdown
3. press and hold the volume up button for 3 seconds
4. press power button while hold the volume up (press it for 0.5second and keep holding it)
5. after 0.5 seconds, plug in the usb right away
6. the QFIL tool should appear the Qualcomm usb QD loader
7. the download button should turn blue
8. flash it and wait for reboot
Click to expand...
Click to collapse
Thanks for your tip.
I followed your described procedure, but the phone will not be recocnized by the PC.
1st: I loaded QFIL XML file. (By the way this tut is made by me)
2nd: I disconnected the battery (The phone can't be turned off normally!)
3rd, 4th, 5th
6th: nothing happend!
7th: "-"
8th: "-"
The only way the phone will detected by the PC:
1st: disconnect battery
2nd: plug in USB (PC and Phone)
3rd: press VOL+ or VOL- or PWR button (doesn't matter which one)
4th: connect battery
5th: detected as "unknown usb device (device descriptor request failed)"

m_atze said:
Thanks for your tip.
I followed your described procedure, but the phone will not be recocnized by the PC.
1st: I loaded QFIL XML file. (By the way this tut is made by me)
2nd: I disconnected the battery (The phone can't be turned off normally!)
3rd, 4th, 5th
6th: nothing happend!
7th: "-"
8th: "-"
The only way the phone will detected by the PC:
1st: disconnect battery
2nd: plug in USB (PC and Phone)
3rd: press VOL+ or VOL- or PWR button (doesn't matter which one)
4th: connect battery
5th: detected as "unknown usb device (device descriptor request failed)"
Click to expand...
Click to collapse
Make sure you have to plug in the usb right away as soon as you u press power, and keep holding them

OtakuLi said:
Make sure you have to plug in the usb right away as soon as you u press power, and keep holding them
Click to expand...
Click to collapse
Yes, I did exactly you described. Sorry but this isn't working.
I don't know what I should do. Even a repair shop couldn't fix it.
Maybe I need to do this:
http://bbs.lenovomobile.cn/z2/t121791/?highlight=900e
But I don't want to destroy my PC (3000 bugs)

m_atze said:
Yes, I did exactly you described. Sorry but this isn't working.
I don't know what I should do. Even a repair shop couldn't fix it.
Maybe I need to do this:
http://bbs.lenovomobile.cn/z2/t121791/?highlight=900e
But I won't destroy my PC (3000 bugs)
Click to expand...
Click to collapse
oh well, good luck

OtakuLi said:
oh well, good luck
Click to expand...
Click to collapse
I will report the result.

OK. I made the deepflash cable.
After using it there is no difference between pressing one of the button combinations I recently mentioned (VOL+ or VOL- or PWR).
The phone will be detected as Unknown device. After intalling my modified driver to match the unknown ID, QFIL don't detect the COM Port.

Hello had the same problem, only with the difference that my battery was not completely discharged.
What has helped:
1 Start QFIL Tool
2 Press the volume +
3 Connect the original cable to the PC
4 QFIL Tool recognized the phone and I could play an original Rome.
Mfg
Ps. Is now the battery cover (glass) broken?

No, I used a hairdryer, a razorblade, plastic tool and a suction cup to lift the backcover glass.
The glass is fully intact no damages.

You have good nerves. I would not have expected that.
But in the end, it does not matter if it does not start anymore.
Thank you again for your great instructions for playing and rooting the mobile phone.
I hope you get your phone back.
Mfg

Good and bad news
The guy unbricked the phone successfully, I received it today.
Now I have an other problem:
The phone is very very slow and laggy now.
The problem occurs everywere, Recovery, boot (the bootlogo laggs), booted System, also the test mode laggs now
Furthermore the sceen flickers sometimes and at the right side the sceen is mirrored sometimes.
Did anyone has an idea?
What I did today:
reflash through qfil
1.9.104_ST
2.3.044_ST
ZUI_2.5.335_ST

Hi m_atze, I am exactly in the same situation as You. After using deep flash cable method, I got "unknown usb device (device descriptor request failed)". Could You tell me what was the solution to unbrick the phone?

Cannot boot to download mode after the latest update

Hi all,
I've updated my Galaxy A71 to the latest update included with AP patched by Magisk Manager..
and then i found that the download mode is gone.
All i see is exactly like this:
https://cutt.us/wuxzj
Except for the device status in the bottom "unlocked" for me.
was this caused by the update or I've screwed something ?!!
any help would be appreciated , thank yall.

could you please try fastboot command? with fastboot binary?

the same thing happens to me and whatever i choose in the bootloader screen doesnt make a difference

Mr.3bood said:
Hi all,
I've updated my Galaxy A71 to the latest update included with AP patched by Magisk Manager..
and then i found that the download mode is gone.
All i see is exactly like this:
https://cutt.us/wuxzj
Except for the device status in the bottom "unlocked" for me.
was this caused by the update or I've screwed something ?!!
any help would be appreciated , thank yall.
Click to expand...
Click to collapse
Samsung introduced a New process to enter download mode on their recent firmwares
1 power off phone (do not connect usb cable)
2.connect usb cable to PC
3.press and hold volume up and down buttons
4. Connect usb cable to phone
5. Wait 5 seconds and bootloader will load (keep volume buttons pressed)

dezborders said:
Samsung introduced a New process to enter download mode on their recent firmwares
1 power off phone (do not connect usb cable)
2.connect usb cable to PC
3.press and hold volume up and down buttons
4. Connect usb cable to phone
5. Wait 5 seconds and bootloader will load (keep volume buttons pressed)
Click to expand...
Click to collapse
Hi,
it is not working for me, displays only battery charging icon and it wont boot.
Is there any other solution?
Thank you!

mculumov said:
Hi,
it is not working for me, displays only battery charging icon and it wont boot.
Is there any other solution?
Thank you!
Click to expand...
Click to collapse
Not that I'm aware of sorry ... You are connecting cable to a powered on PC or laptop? Holding down both volume up and volume down whilst connecting cable ?

dezborders said:
Not that I'm aware of sorry ... You are connecting cable to a powered on PC or laptop? Holding down both volume up and volume down whilst connecting cable ?
Click to expand...
Click to collapse
Also they need to hold the power button

On the newer samsung phones you need to power off your phone hold down volume up and volume down and insert your charging cable in your phone make sure the cable is inserted in a pc or a charger.

Database Develop

welcome