Hi
so the problem started like this
i had my nexus 5 rooted and it was good
then i decided to unroot the device , so i searched i found this kingo root app , and by mistake tried to root my device
it did not work as the app said , so i ignored the app , and kept using my phone like normal , but then my phone shuts down cuz of battery
no problem , i connected it to the charger , but then it keeps on boot loop , it wont boot , and i tried to flash it but i cant
also when i go to bootloader and then recovery mode , it says no command found
PS : the only time my PC can see my nexus in USB debugging mode is when its in boot loop​
khird said:
Hi
so the problem started like this
i had my nexus 5 rooted and it was good
then i decided to unroot the device , so i searched i found this kingo root app , and by mistake tried to root my device
it did not work as the app said , so i ignored the app , and kept using my phone like normal , but then my phone shuts down cuz of battery
no problem , i connected it to the charger , but then it keeps on boot loop , it wont boot , and i tried to flash it but i cant
also when i go to bootloader and then recovery mode , it says no command found
PS : the only time my PC can see my nexus in USB debugging mode is when its in boot loop​
Click to expand...
Click to collapse
How are you trying to flash your phone? Is it through the factory images here: https://developers.google.com/android/nexus/images ? This is usually the easiest way to flash the factory images, but your phone may not work with these in the state it is right now.
As for the "no command found", that is normal behavior for stock recovery. In fact, there isn't much you can do with the stock recovery and you may be used to a custom recovery like TWRP or CWM.
What I would try is to enter recovery mode, where the dead Android appears. Then, hold the volume up and power button for about three seconds. After this, you can let go of the volume up, while still holding the power button. After a while, commands should appear and you can try a factory reset, or maybe a simple cache wipe might work for you.
If that still doesn't work, flash the factory images from the link I sent while on the "no command page". In that state, your phone should be recognized by the computer and you should be able to flash properly. You may have to install adb on you computer and drivers if that isn't already done.
Best of luck!
Related
Dear Frnds,
This is my 1st post in XDA, Need help,
Using HTC desire x.
Yesterday I selcted to upgrade my OS from ICS to JB, the download was successful, and started to install.
1st the Red triangle symbol appeared and then the HTC boot screen, Nothing further. U left the phone for a long time thinking the new OS is getting booted. Then realised got stuck up in updation. The phone doesnt boot,
I have tried Hard reset- not happening.it again comes back to boot screen and stucks.
Recovery- Not happening.
With addition to above, there is one more prob- I cant switch on when its connected to charger, i need to disconnect charge to switch it on.
Nor when its on if i connect charger it doesnt charge.
Note- When i mentioned device on, it implies only only boot screen.
The device is still under warranty, should i take it to service for flash? Or do i have any other solutions for this.?
This is an unrooted device
Kindly help.
Thanks & regards,
Avinash.v
alvzodiac said:
Dear Frnds,
This is my 1st post in XDA, Need help,
Using HTC desire x.
Yesterday I selcted to upgrade my OS from ICS to JB, the download was successful, and started to install.
1st the Red triangle symbol appeared and then the HTC boot screen, Nothing further. U left the phone for a long time thinking the new OS is getting booted. Then realised got stuck up in updation. The phone doesnt boot,
I have tried Hard reset- not happening.it again comes back to boot screen and stucks.
Recovery- Not happening.
With addition to above, there is one more prob- I cant switch on when its connected to charger, i need to disconnect charge to switch it on.
Nor when its on if i connect charger it doesnt charge.
Note- When i mentioned device on, it implies only only boot screen.
The device is still under warranty, should i take it to service for flash? Or do i have any other solutions for this.?
This is an unrooted device
Kindly help.
Thanks & regards,
Avinash.v
Click to expand...
Click to collapse
HY,i had this problem ,here is how you can solve it .If you can ,enter the phones stock recovery(volume up+power) and go into bootloader mode ,then open cmd on your computer and tipe this fastboot flash recovery recovery-clockwork-touch-5.8.2.7-endeavoru.img ,this worked for me.This might have happened when you flashed the boot.img that was not installed correctly.if you need more information just tell.
Hi,
Thanks for the reply,
i had been dere and also seen the msg in my device as usb boot mode,
but wen i entered in cmd it says not recognised by internal or external command. operable batch file.
whats this about.
should i jus type "(fastboot flash recovery recovery-clockwork-touch-5.8.2.7-endeavoru.img)
does this required and special characters ?
The syn drivers are been installed
Plz suggest m not dat good in softwares.
thanks
alvzodiac said:
Hi,
Thanks for the reply,
i had been dere and also seen the msg in my device as usb boot mode,
but wen i entered in cmd it says not recognised by internal or external command. operable batch file.
whats this about.
should i jus type "(fastboot flash recovery recovery-clockwork-touch-5.8.2.7-endeavoru.img)
does this required and special characters ?
The syn drivers are been installed
Plz suggest m not dat good in softwares.
thanks
Click to expand...
Click to collapse
HY,are you rooted,because this is the only way you can do this what io told you previously.If you just updated the device software trough an official htc update,the thing that might cause this should be the hard reset you did.TRY to power down the device completly,and restart it,if it doesnt boot and works ,it means that you have no recovery installed on your device,i solved that by typing this in cwm fastboot erase cache but again i did this because i am rooted,also if thye first one didnt work you needed to tipe into cmd before that comand fastboot devices,to be sure your device is connected.SO IF YOU did what i told you before adn it didnt work even if you redo it ,try to change the RUU of your device (ROM UPDATE UTILITY),OR you can do this if you are rooted you are now in recovery(red triangle) where you should press volume up + power and you will get a small menu that says clockworkmode update.zip ,and you should press that.
Hello.
Thank you in advance for your help. This is my problem. Fews days ago the button-on-off was broken. I somehow managed to live with that problem. Untill I decided to open the phone and see if I can fix it. I noticed then that is if I remove the battery and put it on again; the phone would boot on its own. I opened the phone and checked it from inside I couldn't see anyhing abnormal. Probably the button needs to be replaced.
while I was assembling the phone, the battery was removed while the phone was booting. Afterwards, the phone didn't want to boot anymore given the fact that the button remains useless. I read on some posts that if I plug the Usb cable to the PC the phone would boot, but nothing happened.
So here's where I am stuck. If anyone knows how I can boot the phone despite the button being broken and the USB trick not working. please help
Try using adb reboot fastboot to boot to fastboot and then change with the volume keys to reboot.
Sent from my GT-I9100 using xda app-developers app
stuck on google screen
xDeadaheaDx said:
Try using adb reboot fastboot to boot to fastboot and then change with the volume keys to reboot.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Thank you for your help, here's what I have done :
I have had the button replaced. the button works now fine. but the phone is stuck on the google screen and doesn't boot. I have access to Fastboot mode. I've tried to unlock it to be able to copy some recovery file. but i got the message (Failed: erase...).
I tried wipe/reset. when I do wipe cache partition, it formats the partition, i don't know what effects does it have. are all the data wiped? including the ROM? ...but it has no effect and the sysgtem just boots and goes back to the frozen google screen and when I perform factory reset it goes back to the robot with the red triangle screen.
Anyway, I tried the only option left which is "apply update from ADB" the phone goes into adb mode and waits for the update to be sent.
the phone is obviously recongnized in my computer as an ADB interface. i wrote the command <adb sideload update.zip> the update.zip is actually the official 4.1.2 ROM downloaded from google sites and renamed. After the execution of the command, the file was sent, I had then a big hope that this would be the end of my nightmare, at the end of the sending. The phone reacts and displays the following
Finding update package
Verifying update package,
Installation aborted
So this is where I am stuck. If any one can Help please. by the way NS is on the officla 4.1.2 ROM and not rooted and locked
Thank you
Try Nexus Root Toolkit from http://wugfresh.com/nrt
It has lots of tools and options which might help you.
Sent from my Nexus S using Tapatalk
Hello all.
I just received my Lenovo A850+ today that I bought from China (via ebay). After charging it to full I put in my o2 Sim and blank micro-SD card and started having a play with the phone. (It worked fine before I started messing). Noticing there was no google play store I set about finding a way to put it on. The first thing (perhaps wrongly) i did was install some lenovo usb drivers that some site told me to use with the idea I would flash a custom rom (which i never did in the end) and enabled usb debugging.
I tried to root the phone with a program called Xroot, which unsuccessfully rooted the phone, then I downloaded a new version which updated to Xroot 1.7.7 and that supposedly successfully rooted the phone. It also installed a new app with a name similar to xroot which i then opened. It has what looked like an app manager so i started deleting apps that i thought were unnecessary (bloatware). Suddenly the list of apps changed and the phone froze. I took out the battery and attempted to restart the phone. I now have the following problem:
After hitting the power button the phone it vibrates once, plays an animation and then gets stuck on the logo screen:
Left like this it occasionally vibrates once every 20secs or so but doesnt load any further. When plugged into my PC via usb, after a minute or so my pc recognises the device (but not removable storage and CD Drive (D Lenovo Suite (an exe) pops up. after installing a chinese software suite is installed, which does pop up when my phone is plugged in.
The phone only responds when i hold the power button, which turns it off. Basically I want to fix my phone, hopefully without sending it back to china. I assumed I could just get into a recovery menu and factory reset it. I dont think I can. I can get into the following 3 menus:
factory mode: (power+volumeUp) I dont read chinese, the top few seem to be info/component checks, the bottom one restarts the phone and the eMMC option doesn't fix anything.
recovery mode: (power+volumeUp+volumeDown)Has a menu with power off, reboot, wipe user data (didnt fix anything) and install update package (i tried copying an official rom onto root of sd card but it doesnt recognise it (it looks like it specifically wants a zip called update.zip) i even renamed but didnt help.
meta mode: (power+volumeDown) Doesn't appear to do anything and has no options.
Does any1 have suggestions on how I can perform a factory reset/install a rom or fix my phone or is it just bricked? If you want me to try anything just post and I will give it a go.
Thankyou.
Capiech said:
Hello all.
I just received my Lenovo A850+ today that I bought from China (via ebay). After charging it to full I put in my o2 Sim and blank micro-SD card and started having a play with the phone. (It worked fine before I started messing). Noticing there was no google play store I set about finding a way to put it on. The first thing (perhaps wrongly) i did was install some lenovo usb drivers that some site told me to use with the idea I would flash a custom rom (which i never did in the end) and enabled usb debugging.
I tried to root the phone with a program called Xroot, which unsuccessfully rooted the phone, then I downloaded a new version which updated to Xroot 1.7.7 and that supposedly successfully rooted the phone. It also installed a new app with a name similar to xroot which i then opened. It has what looked like an app manager so i started deleting apps that i thought were unnecessary (bloatware). Suddenly the list of apps changed and the phone froze. I took out the battery and attempted to restart the phone. I now have the following problem:
After hitting the power button the phone it vibrates once, plays an animation and then gets stuck on the logo screen:
Left like this it occasionally vibrates once every 20secs or so but doesnt load any further. When plugged into my PC via usb, after a minute or so my pc recognises the device (but not removable storage and CD Drive (D Lenovo Suite (an exe) pops up. after installing a chinese software suite is installed, which does pop up when my phone is plugged in.
The phone only responds when i hold the power button, which turns it off. Basically I want to fix my phone, hopefully without sending it back to china. I assumed I could just get into a recovery menu and factory reset it. I dont think I can. I can get into the following 3 menus:
factory mode: (power+volumeUp) I dont read chinese, the top few seem to be info/component checks, the bottom one restarts the phone and the eMMC option doesn't fix anything.
recovery mode: (power+volumeUp+volumeDown)Has a menu with power off, reboot, wipe user data (didnt fix anything) and install update package (i tried copying an official rom onto root of sd card but it doesnt recognise it (it looks like it specifically wants a zip called update.zip) i even renamed but didnt help.
meta mode: (power+volumeDown) Doesn't appear to do anything and has no options.
Does any1 have suggestions on how I can perform a factory reset/install a rom or fix my phone or is it just bricked? If you want me to try anything just post and I will give it a go.
Thankyou.
Click to expand...
Click to collapse
you can go download a rom from needrom dot com.
there two roms there.
the official older is multilaguage and the newer is english/chinese.
sorry, but cannot post a link.
You need:
1. Flash tool
2. ROM (official or custom)
see instructions here: www*needrom*com/mobile/lenovo-a850/
thanks fixed now
hi i have same problem here and my laptop cant detect my device
i try to flahing new rom and restore from twrp but my phone still stuck at logo
help me please
ojik said:
hi i have same problem here and my laptop cant detect my device
i try to flahing new rom and restore from twrp but my phone still stuck at logo
help me please
Click to expand...
Click to collapse
You need to install the ADB drivers and the Drivers for your device. If they are both installed you can check if your device is recognised by PC by typing this command: "adb devices". If you don't know how to use ADB I posted a helpful tool.
Then you need to download a ROM on your PC and then flash it via Sideload to your device.
Possible bricked A850+
Have a possible bricked A850+ I tried to install custom recovery as I wanted a custom rom and it wanted SuperSU we installed but it failed to update binary 3 times on normal, when turned I it off and back on again it was stucked in the boot screen.:crying:
I have tried to wipe all date via Recovery which I can access but still no luck with the ordinary boot, when trying to use flash tool absolutely nothing happens when the phone is connected, so can anybody in here help with my problem?
Thanks in advance
Bregnhoj
Im trying to fix my GFs phone its stuck on the boot screen when the phone got turned off during an update
I got ADB installed and can see it in the CMD but its not showing my phone as connected,
I suspect this is because I dont have USB debugging enabled but seems the phone cant turn on i cant enable it, ive spent a few hours googling and googling but i cant find any way to get anything to work seems it wont connect to the phone
The phone does show up on my drives list when plugged in but it does not show up as an android device in the device manager. Am i screwed or is there another way to fix this?
Every single thing i try has "Make sure USB Debugging is enabled." ......
is there some way to enable it when i cant get the phone turned on....
Mega brick
Hi all,
I have mega bricked my A850 with flash tool trying to install custom ROM. When I click, hold or whatever, nothing happens. USB not responding at all, LEDs not flashing. Is there a method or place where I could bring it back to life?
I have a Lenovo A850+ thats always rebooting/restarting automatically, i can't also send sms. What is the problem and solutions? Thanks... Hoping for immediate response.
ejpolaron said:
I have a Lenovo A850+ thats always rebooting/restarting automatically, i can't also send sms. What is the problem and solutions? Thanks... Hoping for immediate response.
Click to expand...
Click to collapse
Try to install stock firmware
Hey there, I'm currently possesed a THL 2015, chiense phone, with firmare kitkat 4.4.4, Rooted.
Ok, today i was trying to change my Bootanimation (which i've changed several times already), but i've encountred a huge problem.
My phone has stucked on On/Off loops at the first time after i've changed the bootanimation...
Well i've tried to enter Recovery Mode.. but.. hmm.. how should i put it... My phone got stuck on it aswell..
My phone is looping in Recovery mode (i know that because there is the logo with the "No command thing"),
The device is turning off, then back on every 7~15 seconds after enerting automaticly into Recovery mode..
I've tried every single key pressing on the On/off key and Volume keys.. but in failure.. the Recovery mode won't goes out, and the device still loops.
Okay... now What i've tried also.
I've tried to connect my device into my computer trying to getting a shell trough ADB. but in failure, cause of the device loops in Recovery Mode, adb and the computer won't recongnizing my device.
Ok.. Flashing?
So i've tried to download SP_Flash_tool for flashing into stocked downloaded rom, but also in failure, non of the roms i've downloaded for my Device were recognized in the SP flash tool, (the scatter).
I've downloaded it from several sites in them were this site: needrom/com/download/thl-2015.
Tried every rom, still not recognizing.
Well i've failured in everything i've tried, so im here asking for help.
My main goal is getting a shell for my device, for me deleting the bootanimation i've tried to install.
ok.. i've talked too much..
Thank's for helping.
azsd979 said:
Hey there, I'm currently possesed a THL 2015, chiense phone, with firmare kitkat 4.4.4, Rooted.
Ok, today i was trying to change my Bootanimation (which i've changed several times already), but i've encountred a huge problem.
My phone has stucked on On/Off loops at the first time after i've changed the bootanimation...
Well i've tried to enter Recovery Mode.. but.. hmm.. how should i put it... My phone got stuck on it aswell..
My phone is looping in Recovery mode (i know that because there is the logo with the "No command thing"),
The device is turning off, then back on every 7~15 seconds after enerting automaticly into Recovery mode..
I've tried every single key pressing on the On/off key and Volume keys.. but in failure.. the Recovery mode won't goes out, and the device still loops.
Okay... now What i've tried also.
I've tried to connect my device into my computer trying to getting a shell trough ADB. but in failure, cause of the device loops in Recovery Mode, adb and the computer won't recongnizing my device.
Ok.. Flashing?
So i've tried to download SP_Flash_tool for flashing into stocked downloaded rom, but also in failure, non of the roms i've downloaded for my Device were recognized in the SP flash tool, (the scatter).
I've downloaded it from several sites in them were this site: needrom/com/download/thl-2015.
Tried every rom, still not recognizing.
Well i've failured in everything i've tried, so im here asking for help.
My main goal is getting a shell for my device, for me deleting the bootanimation i've tried to install.
ok.. i've talked too much..
Thank's for helping.
Click to expand...
Click to collapse
Greetings,
Thank you for using XDA Assist.
There are no forums that are specific to your device on XDA, however you can post your questions here:
Android Q&A, Help and Troubleshooting
You'll receive expert advice there. Good luck!
hi everyone,
recently my phone died because a stupid mistake i made. i rooted it for i while and it was all good. ( i used magisk )
i had an new update to download and i downloaded it but not installed it yet.
the mistake i made is that i selected an option in magisk ( install to inactive slot after ota )
normally i install the ota update after that and it would boot up normally with magisk installed.
this time i forgot to install the update because i was bussy that day. so i have bootloop now.
so not i big deal was the first thing i thought. ( just use fastboot and use fastboot --set-active=a
but the problem is fastboot wont work anymore. the pc wont recognize my device anymore ( before all of this it was recognized just fine and i used fastboot more then once )
i also tryed to use msmdownloadtool but it wont boot to edl mode aswell ( pc wont recognize it either ) i used 2 different pc;
when i try to boot the phone youll see the op logo and then a black screen, when i puss the power button it says on the screen power off and restart. if youll do nothing it will reboot and do it all over again.
can someone please help me?
- cant use fastboot / recovery
- already wiped all data / cache
- edl mode wont start ( i know that the screen will stay black but msmdownloadtool wont find anyting and pc neither )
-re installed drivers etc
im really frustated that a stupid mistake this little caused so many problems. lol
I'm in the same situation in another device. If i solve my problem i will notify you
Try to use edl cable
I've found that I sometimes have to reinstall the bootloader driver.
If Device Manager on your PC shows the phone when you plug it in, even though you can't use fastboot commands, then reinstalling the driver may help.
Have a look at https://forum.xda-developers.com/t/...t-fastbootd-driver-guide-for-windows.4282241/ which has lots of screenshots.