I tried to downgrade the kitkat version because I couldn't update my apps, using a flash tool.
It then shut down and now does not turn on at all. When I plug into the computer the USB gets into a cycle/loop of connect and disconnect. Please help me if you have the time.
lenover9000 said:
I tried to downgrade the kitkat version because I couldn't update my apps, using a flash tool.
It then shut down and now does not turn on at all. When I plug into the computer the USB gets into a cycle/loop of connect and disconnect. Please help me if you have the time.
Click to expand...
Click to collapse
Does it vibrates or display anything?
Tyaginator said:
Does it vibrates or display anything?
Click to expand...
Click to collapse
no. But I think it goes on '''META MODE'" ONLY on the computer for a few seconds.
Thanks for commenting.
Check device manager in your pc when you connect your phone, is it showing MTK 65xx preloader
Tyaginator said:
Check device manager in your pc when you connect your phone, is it showing MTK 65xx preloader
Click to expand...
Click to collapse
It shows Mediatek preloader usb vcom port (com7) alternating with mtk usb port (com6).
lenover9000 said:
It shows Mediatek preloader usb vcom port (com7) alternating with mtk usb port (com6).
Click to expand...
Click to collapse
U must have flashed some other device's firmware and which guide u have followed
Tyaginator said:
U must have flashed some other device's firmware and which guide u have followed
Click to expand...
Click to collapse
I used this one.
forums (dot) lenovo (dot) com/t5/A-and-P-Series/Lenovo-A536-stuck-during-firmware-upgrade/td-p/1744571[/url]
I downloaded the latest firmware from
"THIS is the latest original ROW firmware (PC Flash Tool installation)"
This whole guide was fine, it worked for me.
But the problem was when I tried to downgrade the firmware to an older version.
I tried to replace the lastest official firmware with this one ROM Android 4.4.2 (older official needrom(dot)com/download/lenovo-a536/
sorry can't link websites yet
http://forum.xda-developers.com/showthread.php?t=1943442
Try this thread
Tyaginator said:
http://forum.xda-developers.com/showthread.php?t=1943442
Try this thread
Click to expand...
Click to collapse
Thank you so much for staying with me to solve this problem. The phone is fixed.
I followed the
"
For MT6575/ 77
With the battery out, hold the volume up, don't let go & plug in the USB cable will activate META mode for few seconds...Typically, you need to click Download at SP Flash Tool before entering META mode or it will auto disconnected...
"
except I downloaded the lenovo a536 stock rom.
the only thing I did different was that I plugged in (META MODE) and THEN pressed download or else the usb would never be detected (they both show different COM numerals.)
After that I firmly held the whole usb into the phone during the whole flashing, or else it might get automatically disconnected again.
Then I updated/upgraded to the latest firmware, And it is all optimal. :good:
THANKS AGAIN !!!
lenover9000 said:
Thank you so much for staying with me to solve this problem. The phone is fixed.
I followed the
"
For MT6575/ 77
With the battery out, hold the volume up, don't let go & plug in the USB cable will activate META mode for few seconds...Typically, you need to click Download at SP Flash Tool before entering META mode or it will auto disconnected...
"
except I downloaded the lenovo a536 stock rom.
the only thing I did different was that I plugged in (META MODE) and THEN pressed download or else the usb would never be detected (they both show different COM numerals.)
After that I firmly held the whole usb into the phone during the whole flashing, or else it might get automatically disconnected again.
Then I updated/upgraded to the latest firmware, And it is all optimal. :good:
THANKS AGAIN !!!
Click to expand...
Click to collapse
Glad it's fixed
I Too Need help my lenovo a536 is bricked
My phone is not booting , unable to install USB VCOM Drivers and it is constantly going off while installing and unable to install driver ,phone vibrates shows logo but it goes in bootloop pls help urgent:crying:
prathamsd4 said:
My phone is not booting , unable to install USB VCOM Drivers and it is constantly going off while installing and unable to install driver ,phone vibrates shows logo but it goes in bootloop pls help urgent:crying:
Click to expand...
Click to collapse
What do u mean by "it is constantly going off while installing"
Does it boot in recovery mode? Please be as specific as you can while posting questions.
Sent from a Device using an App!
Tyaginator said:
What do u mean by "it is constantly going off while installing"
Does it boot in recovery mode? Please be as specific as you can while posting questions.
Sent from a Device using an App!
Click to expand...
Click to collapse
it does not boot in recovery mode,
while trying to install mediatek usb vcom drivers phone constantly connects and disconnect and i am unable to install drivers..
prathamsd4 said:
it does not boot in recovery mode,
while trying to install mediatek usb vcom drivers phone constantly connects and disconnect and i am unable to install drivers..
Click to expand...
Click to collapse
I don't think you need to connect phone during installing drivers and phone will stay connected after properly installing DA Vcom drivers
Sent from a Device using an App!
I have similar problem
Hi, please I need your help. I tried to flash stock ROM but I hard bricked my phone. When I connect phone with computer I'm holding volume up button. In device manager it shows "MediaTek USB Port (COM4)" but after three seconds it disconnect. This is why I can't flash ROM. It's everytime disconnect after three seconds.. Please help me.
Lenovo A536
Please help me guys, where is GND and COLO point of lenovo a536
same problem
i have a lenovo a536 and when i flash the stock
it goes to a cycle of off and on , help me to fix this
ive tried a lot of stock roms i searched,and none of them worked , the cycle of turning off and on is still there
Recently i tried flashing cwm recovery using sp flash tools. I followed an online tutorial which asked me to specifically download the boot. Img (patched) and recovery. Img, which was cwm. I insatlled all the drivers as asked then I turned off my device as asked and connected the device using usb cable after pressing the download button on sp flash tools. After a few seconds i saw the red line which is the starting of the flashing process, and then i received an error 'b_rom error" or something like that... I forgot, i dont have screenshot .
The phone is not responding since then, but when i connect the phone to my laptop the phone is recognised as 'mediatek da com port' but this driver doesnt work if i want to flash the stock rom using the sp flash tools, the internet says that i need the 'mediatek preloader driver' which is supposed to appear for 2 seconds in the device manager section and dissapear, but alas this doesnt appear in my case, and i guess this is really important for flashing the stock rom using sp flash tools. I tried many ways to install the mtk preloader driver but even of it installs it is not compatible with my device. I cant find this driver and hence i cant bring my phone back from the dead
If any member could help me here i would be really thankful , i have the stock rom downloaded and all the drivers as asked in various tutorials so i am helpless now. Please someone respond to this thread...
My device is xolo 8x 1000i with mediatek 6592 octacore chip.
Thankx ahead
ron2yee said:
Recently i tried flashing cwm recovery using sp flash tools. I followed an online tutorial which asked me to specifically download the boot. Img (patched) and recovery. Img, which was cwm. I insatlled all the drivers as asked then I turned off my device as asked and connected the device using usb cable after pressing the download button on sp flash tools. After a few seconds i saw the red line which is the starting of the flashing process, and then i received an error 'b_rom error" or something like that... I forgot, i dont have screenshot .
The phone is not responding since then, but when i connect the phone to my laptop the phone is recognised as 'mediatek da com port' but this driver doesnt work if i want to flash the stock rom using the sp flash tools, the internet says that i need the 'mediatek preloader driver' which is supposed to appear for 2 seconds in the device manager section and dissapear, but alas this doesnt appear in my case, and i guess this is really important for flashing the stock rom using sp flash tools. I tried many ways to install the mtk preloader driver but even of it installs it is not compatible with my device. I cant find this driver and hence i cant bring my phone back from the dead
If any member could help me here i would be really thankful , i have the stock rom downloaded and all the drivers as asked in various tutorials so i am helpless now. Please someone respond to this thread...
My device is xolo 8x 1000i with mediatek 6592 octacore chip.
Thankx ahead
Click to expand...
Click to collapse
If you can see DA VCOM port when u connect the phone that means there is no need of mtk preloader to appear. You can try flashing the stock firmware.
If you really want to see mtk preloader 65xx, then right click on DA vcom port and click uninstall drivers. Then you will see mtk preloader 65xx for 2 seconds everytime you connect the phone.
Gud luck
Sent from my Android One
Tyaginator said:
If you can see DA VCOM port when u connect the phone that means there is need of mtk preloader to appear. You can try flashing the stock firmware.
If you really want to see mtk preloader 65xx, then right click on DA vcom port and click uninstall drivers. Then you will see mtk preloader 65xx for 2 seconds everytime you connect the phone.
Gud luck
Sent from my Android One
Click to expand...
Click to collapse
first of all thankx for your swift reply
and coming to the driver part.. i tried uninstalling the da drivers but it reverted to someother driver nit mtk preloader it had a different name.... whatsoever
and finally... my device is up and running its a miracle.... i kept it for a whole day and later i plugged in the charger and viola the phone was discharged and it started charging
also i have another problem with which i ll start a thread.. do keep an eye out please sir
thankx again [emoji4] [emoji4] [emoji4]
Sent from my 8x-1000i using Tapatalk
Somehow I have managed to brick my new cubot S550.
I wanted to update the rom so I headed to needarom and downloaded the appropriate rom and followed the instructions but somewhere along the line by pressing the vol keys and the power key the screen has gone black. This was done before I used any flash tools or install any drivers.
when I did plug it into the computer it was initially being seen as an unknown device but now I managed to install some drivers and it shows up as mediatek DA USB VCOM (android) (COM 5) I can install other drivers such as mediatek PreLoader USB VCOM Port and MTK USB Port and they seem to install but only after I untick show compatible hardware. When that is ticked then only mediatek DA USB VCOM shows in the list so I assume the state it is in is mediatek DA USB VCOM (android) (COM 5).
Unfortunately when I follow the instructions on needarom it throws up the error message S_COM_PORT_OPEN Fail(1013) so the flash tool obviously cannot communicate with the phone. This is the same even if I install the drivers as mediatek PreLoader USB VCOM.
The instructions on needarom are sort of wrong anyway because it instructs you to remove the battery etc but it is not a phone that has a removable battery.
I have two main questions.
How can I update the rom or failing that how can I get it off this black screen? I have tried different version of pressing the power button and vol keys and nothing is working.
Famineuk said:
Somehow I have managed to brick my new cubot S550.
I wanted to update the rom so I headed to needarom and downloaded the appropriate rom and followed the instructions but somewhere along the line by pressing the vol keys and the power key the screen has gone black. This was done before I used any flash tools or install any drivers.
when I did plug it into the computer it was initially being seen as an unknown device but now I managed to install some drivers and it shows up as mediatek DA USB VCOM (android) (COM 5) I can install other drivers such as mediatek PreLoader USB VCOM Port and MTK USB Port and they seem to install but only after I untick show compatible hardware. When that is ticked then only mediatek DA USB VCOM shows in the list so I assume the state it is in is mediatek DA USB VCOM (android) (COM 5).
Unfortunately when I follow the instructions on needarom it throws up the error message S_COM_PORT_OPEN Fail(1013) so the flash tool obviously cannot communicate with the phone. This is the same even if I install the drivers as mediatek PreLoader USB VCOM.
The instructions on needarom are sort of wrong anyway because it instructs you to remove the battery etc but it is not a phone that has a removable battery.
I have two main questions.
How can I update the rom or failing that how can I get it off this black screen? I have tried different version of pressing the power button and vol keys and nothing is working.
Click to expand...
Click to collapse
Hi,
I had a quite similar problem. I tried to flash recovery with SP flash tool, but nothing happened. Eventually I gave up and tried to turn on the phone without success. So I charged the phone for a while and tried several combinations of holding power and volume up button for a while, also without success. It turned out that it did not charge at all. Strangely enough the following worked:
Connect the phone to a charger -> Press Power and Volume up -> Unplug charger while holding Power and Volume up
This launched the bootloader. After a few seconds it turned off again. But now I was able to charge the phone again and after a short while the regular charging icon appeared. Now I can boot it up as usual.
Hopefully it works for you as well!
i tryed some tutorial where is guy give me img files which I pushed (by my mistake) install with "DiskImageRev2" (it is alot solutions no one can know what is best solution for those phones...)... display on my phone don't poweing on, i have installed only devices RELINK HS-USB QDLoader 9008 (on some port)
bifore i have made any kind of changes i had problem with "Security boot error" with pink screen and m not have USB Debugging enabled in phone couse is alrdy been down and m been unable to enable usb debugging....
did have any kind of repair excluding flash box?
sorry for my bad english..
Try this first
In the following thread, you can see my post as a reply. Refer to that and see whether you can fix your phone. You'll need your data cable came with your phone..
https://forum.xda-developers.com/android/help/help-bootloop-lg-l70-d320-t3304382#post70962321
Hey,
I got a Tcl m3g wich i root and flash to CM12. After a mounth my phone wasn't able to boot, it was stuck in a bootloop. So i flashed it with QFIL and it was still stuck in a bootloop with primo V2 firmware so i flashed it a second time with an other firmware. My phone wasn't stuck anymore in a bootloop but still won't boot.When i connected it to my computer it apears like an hard drive.But the next day when i conneced it to my computer it apears "unknow device" i tried t download qualcom driver to use fastboot but it seems to not work my device is still "unknow device" in device manager (i can't access any mode and my screen is black + my batterry is dead). I hope one of you can hep me:fingers-crossed:
Sorry for my bad english
Update:The computer doesn't detect my phone :'(, the unknow device was my mice...