Hi guys, I can’t seem to find this anywhere on the forums.
I’ve inherited a Samsung J4 Core for a work mobile. It currently doesn’t turn on properly, but I know there is charge.
When I hold down the power button + Up & Down keys, this should boot into the Bootloader. My issue is that it boots up, but then quickly shuts down after a brief blue screen with what looks like a yellow triangle and the laying down Android robot.
Being as I can’t access the Bootloader, it doesn’t appear I can wipe/clear the rom properly. Does anyone know a work around as I obviously need this for a work mobile.
Thanks.
MisterWhippy said:
Hi guys, I can’t seem to find this anywhere on the forums.
I’ve inherited a Samsung J4 Core for a work mobile. It currently doesn’t turn on properly, but I know there is charge.
When I hold down the power button + Up & Down keys, this should boot into the Bootloader. My issue is that it boots up, but then quickly shuts down after a brief blue screen with what looks like a yellow triangle and the laying down Android robot.
Being as I can’t access the Bootloader, it doesn’t appear I can wipe/clear the rom properly. Does anyone know a work around as I obviously need this for a work mobile.
Thanks.
Click to expand...
Click to collapse
Download mode is Power + VOL down + VOL UP with USB cable plugged in.
The blue screen you are talking about is recovery mode. If it shuts off like you say the battery is completely flat.
ashyx said:
Download mode is Power + VOL down + VOL UP with USB cable plugged in.
The blue screen you are talking about is recovery mode. If it shuts off like you say the battery is completely flat.
Click to expand...
Click to collapse
It's bizarre as I've had the phone charging via the normal wall charger overnight and it still has the same results. Likewise with your above method with all the keys held down I'm still getting the same error. I'm now at a point where I haven't a clue what to do.
MisterWhippy said:
It's bizarre as I've had the phone charging via the normal wall charger overnight and it still has the same results. Likewise with your above method with all the keys held down I'm still getting the same error. I'm now at a point where I haven't a clue what to do.
Click to expand...
Click to collapse
If you don't see the charging symbol it won't charge in this state.
The only method I know is to boot it to the download mode confirmation screen and leave it in that state while charging it overnight (may even take longer). There will be no charging notification.
Once it has at least 1% charge it should be possible to boot to Recovery mode with the USB cable attached and charge it properly.
ashyx said:
If you don't see the charging symbol it won't charge in this state.
The only method I know is to boot it to the download mode confirmation screen and leave it in that state while charging it overnight (may even take longer). There will be no charging notification.
Once it has at least 1% charge it should be possible to boot to Recovery mode with the USB cable attached and charge it properly.
Click to expand...
Click to collapse
Thanks, but even with that, it won't boot into the download mode either - just flashes and turns straight off., even with the USB cable plugged into my laptop.
MisterWhippy said:
Thanks, but even with that, it won't boot into the download mode either - just flashes and turns straight off., even with the USB cable plugged into my laptop.
Click to expand...
Click to collapse
Are you talking about download mode itself or the blue confirmation screen?
ashyx said:
Are you talking about download mode itself or the blue confirmation screen?
Click to expand...
Click to collapse
Everything. Using the method to get into the download mode itself, the phone turns on and for a brief moment a blue screen flashes with the yellow warning triangle and some, what I presume, error messages and the phone turns off.
Related
I recently unlocked the bootloader via the instructions at HTCDEV.com
I then installed CWM and then rooted the mini.
Everything is fine except when I fully power off the phone then plug it into either the mains or a PC to charge the phone, a large battery icon appears briefly followed by a screenshot of CWM recovery which also flashes briefly then a constant green screen is displayed whilst charging.
Obviously something's not right...does anybody have any ideas how to bring back the charging battery screen whilst the device is fully powered off and charging?
Sirius-C said:
I recently unlocked the bootloader via the instructions at HTCDEV.com
I then installed CWM and then rooted the mini.
Everything is fine except when I fully power off the phone then plug it into either the mains or a PC to charge the phone, a large battery icon appears briefly followed by a screenshot of CWM recovery which also flashes briefly then a constant green screen is displayed whilst charging.
Obviously something's not right...does anybody have any ideas how to bring back the charging battery screen whilst the device is fully powered off and charging?
Click to expand...
Click to collapse
i had the same problem with cwm.. twrp recovery works like charm.. so try it..
Hello, thanks for your post.
I'm currently running twrp, it's a great program but it too behaves oddly...
When mini is powered off and plugged into charger...it switches on and boots to TWRP
It charges ok but the screen is unresponsive....I have to long press power to reset it.
Hey all,
First time I've posted here as I can't find anything on the internet regarding this issue.
My phone is not rooted and on stock rom I (stupidly!) changed the runtime mode to ART when reading an article on how to extend battery life. I did this and then since doing that my phone won't start up and when plugged in to an outlet or a PC the usual battery icon comes on and then drops out after a few seconds, and then comes on again, and then drops out and it just keeps on doing this.
Theres a youtube video available but I can't post a link here because I'm a new user.
When the phone is plugged in to a PC it doesn't recognise the device as the power just keeps dropping out so I can't flash stock ROMS and I can't get to recovery to reflash the phone to factory settings (it just turns off)
Any genius out there to help with this?! Much appreciated
purplechris83 said:
Hey all,
First time I've posted here as I can't find anything on the internet regarding this issue.
My phone is not rooted and on stock rom I (stupidly!) changed the runtime mode to ART when reading an article on how to extend battery life. I did this and then since doing that my phone won't start up and when plugged in to an outlet or a PC the usual battery icon comes on and then drops out after a few seconds, and then comes on again, and then drops out and it just keeps on doing this.
Theres a youtube video available but I can't post a link here because I'm a new user.
When the phone is plugged in to a PC it doesn't recognise the device as the power just keeps dropping out so I can't flash stock ROMS and I can't get to recovery to reflash the phone to factory settings (it just turns off)
Any genius out there to help with this?! Much appreciated
Click to expand...
Click to collapse
Even the bootloader?
Bootloader
Lethargy said:
Even the bootloader?
Click to expand...
Click to collapse
I can get to the bootloader by pressing volume down and the power button and that comes up fine, when I choose START or RECOVERY it just turns off.
purplechris83 said:
I can get to the bootloader by pressing volume down and the power button and that comes up fine, when I choose START or RECOVERY it just turns off.
Click to expand...
Click to collapse
Try flashing the factory images. If anything fails post the entire cmd
Flashing Images
Lethargy said:
Try flashing the factory images. If anything fails post the entire cmd
Click to expand...
Click to collapse
Hi Lethargy, Thanks for posting so quickly, unfortunately I can't flash the factory images because when I connect the phone to a PC it doesn't pick up anythings connected because the battery just keeps dropping in and then dropping out every 5 seconds so the computer views it as not connected.
purplechris83 said:
Hi Lethargy, Thanks for posting so quickly, unfortunately I can't flash the factory images because when I connect the phone to a PC it doesn't pick up anythings connected because the battery just keeps dropping in and then dropping out every 5 seconds so the computer views it as not connected.
Click to expand...
Click to collapse
Be more specific please. Does it reboot out of bootloader, every 5 seconds, disconnect from your PC every 5 seconds, or..? Are you sure it isn't a driver issue?
More specific
Lethargy said:
Be more specific please. Does it reboot out of bootloader, every 5 seconds, disconnect from your PC every 5 seconds, or..? Are you sure it isn't a driver issue?
Click to expand...
Click to collapse
When I get to bootloader I can select an option, it doesn't reboot out of bootloader every 5 seconds, the bootloader screen is absolutely fine once I get to it, when I click at option from the bootloader screen that's when it doesn't complete that action a message saying "Google" appears (the loading screen) and then the phone turns off.
I need to have the phone plugged in to get to bootloader, if I try without the power cable nothing happens.
Whether it is attached to a PC or a power outlet the same thing happens: battery icon comes up for 5 seconds, then it disappears for 5 seconds, then it comes on for 5 seconds, disappears for 5 seconds.
Any more info needed? Thanks in advance.
purplechris83 said:
When I get to bootloader I can select an option, it doesn't reboot out of bootloader every 5 seconds, the bootloader screen is absolutely fine once I get to it, when I click at option from the bootloader screen that's when it doesn't complete that action a message saying "Google" appears (the loading screen) and then the phone turns off.
I need to have the phone plugged in to get to bootloader, if I try without the power cable nothing happens.
Whether it is attached to a PC or a power outlet the same thing happens: battery icon comes up for 5 seconds, then it disappears for 5 seconds, then it comes on for 5 seconds, disappears for 5 seconds.
Any more info needed? Thanks in advance.
Click to expand...
Click to collapse
You said:
"the bootloader screen is absolutely fine once I get to it"
"I need to have the phone plugged in to get to bootloader, if I try without the power cable nothing happens."
"Whether it is attached to a PC or a power outlet the same thing happens"
I'm not sure what you mean since those statements are a little conflicting.
Doesn't boot into bootloader when plugged into a PC?
Only boots into bootloader when plugged into AC?
If you boot into the bootloader just fine, then flash the factory images with fastboot? http://forum.xda-developers.com/google-nexus-5/general/tutorial-how-to-flash-factory-image-t2513701
purplechris83 said:
When I get to bootloader I can select an option, it doesn't reboot out of bootloader every 5 seconds, the bootloader screen is absolutely fine once I get to it, when I click at option from the bootloader screen that's when it doesn't complete that action a message saying "Google" appears (the loading screen) and then the phone turns off.
I need to have the phone plugged in to get to bootloader, if I try without the power cable nothing happens.
Whether it is attached to a PC or a power outlet the same thing happens: battery icon comes up for 5 seconds, then it disappears for 5 seconds, then it comes on for 5 seconds, disappears for 5 seconds.
Any more info needed? Thanks in advance.
Click to expand...
Click to collapse
Lets check your battery level to make sure it is not gone bad or got deplated. Make sure your phone is off. Hold down volume_up key while you connect the phone to the pc. You should see the download mode screen after that you should see a next screen with the text "firmware update". Underneath that text in a textbox with white border you should see 3 characters. A "B" letter and 2 numeral. "B" means battery the two numeral means the battery level.
For example you see: B23 it means battery level is at 23%
Report me your battery level.
To restart your phone just hold down the power key for 10-15 secs
Thanks
bitdomo said:
Lets check your battery level to make sure it is not gone bad or got deplated. Make sure your phone is off. Hold down volume_up key while you connect the phone to the pc. You should see the download mode screen after that you should see a next screen with the text "firmware update". Underneath that text in a textbox with white border you should see 3 characters. A "B" letter and 2 numeral. "B" means battery the two numeral means the battery level.
For example you see: B23 it means battery level is at 23%
Report me your battery level.
To restart your phone just hold down the power key for 10-15 secs
Click to expand...
Click to collapse
Hi Bitdomo, when I do as you ask I can't enter download mode because it has a connection to my PC for 5 seconds and then turns off, then has a connection and then turns off.
If you go to you tube .com and then follow it with watch?v=ad7KDWp2y-8 you'll see the exact issue I'm having when connecting to a PC or on my computer (I can't paste links as I'm a new user so forgive me.) Thank you for looking into this.
Thanks
Lethargy said:
You said:
"the bootloader screen is absolutely fine once I get to it"
"I need to have the phone plugged in to get to bootloader, if I try without the power cable nothing happens."
"Whether it is attached to a PC or a power outlet the same thing happens"
I'm not sure what you mean since those statements are a little conflicting.
Doesn't boot into bootloader when plugged into a PC?
Only boots into bootloader when plugged into AC?
If you boot into the bootloader just fine, then flash the factory images with fastboot? http://forum.xda-developers.com/google-nexus-5/general/tutorial-how-to-flash-factory-image-t2513701
Click to expand...
Click to collapse
Doesn't boot into bootloader when plugged into a PC? It boots into bootloader when plugged into a PC
Only boots into bootloader when plugged into AC? It boots into bootloader when plugged into AC
If you boot into the bootloader just fine, then flash the factory images with fastboot? When I select any option from the Bootloader screen it then comes up with the Google logo and then turns off (whether plugged in to PC or AC)
purplechris83 said:
Doesn't boot into bootloader when plugged into a PC? It boots into bootloader when plugged into a PC
Only boots into bootloader when plugged into AC? It boots into bootloader when plugged into AC
If you boot into the bootloader just fine, then flash the factory images with fastboot? When I select any option from the Bootloader screen it then comes up with the Google logo and then turns off (whether plugged in to PC or AC)
Click to expand...
Click to collapse
You don't need to select any option to flash the factory images with fastboot, you just need to be in the bootloader. Read the thread I linked.
SOLVED
Hey all, just wanted to say to everyone thats posted in this forum so far THANK YOU for your help. For the people that have found this forum and are having the same problem with their Nexus 5 you need to replace the battery and everything will work fine so it was a hardware issue this one.
As soon as I replaced the battery I could access Recovery and just reset the device with no problems.
purplechris83 said:
Hey all, just wanted to say to everyone thats posted in this forum so far THANK YOU for your help. For the people that have found this forum and are having the same problem with their Nexus 5 you need to replace the battery and everything will work fine so it was a hardware issue this one.
As soon as I replaced the battery I could access Recovery and just reset the device with no problems.
Click to expand...
Click to collapse
i replaced the battery still shows the same problem the battery symbol keeps blinking and it dosent switch on.
someone plz help
It it possible the replacement battery is defective? Possible motherboard problem?
I am using Samsung A7 (Model A700FD). During updating lollipop ROM through odin I got message "FAIL", afterwards when I restarted my phone, it is continuously vibrating and nothing does appear. Hence my phone is now in hard bricked state. There appears no any recovery or download mode - when I try to use download mode by holding Volume Down+Home+Power buttons together for 3-4 seconds, it vibrates a little bit which feels like the phone is in download mode but unfortunately no any display is shown.
Also, odin is not showing any connected port on laptop. When I hold only Power button for 4-5 seconds, it turns OFF and automatically turns ON along with continue vibrating. Currently, I have put my mobile in download mode state, by pressing Volume Down+Home+Power buttons and it does not vibrate and is silent.
One think I notice that battery is charging if I connect to powerbank, because powerbank display shows charging status and decreases its power level (i.e. % when charging) but mobile screen does not show any type of charging status.
I surfed the internet about hard bricked issue and I found Jig USB trick, on this link:
http://forum.xda-developers.com/showthread.php?t=1331782
I tried the method of jig USB cable, but phone is still not showing download mode option. I surfed the internet again and found the solution of HARD BRICK through "debrick.img", but I am new and I don't know how to make "debrick.img" for samsung A700FD. So, friends please guide me and suggest any suitable solution using your expertise and experience.
Thanks
bc030400412 said:
I am using Samsung A7 (Model A700FD). During updating lollipop ROM through odin I got message "FAIL", afterwards when I restarted my phone, it is continuously vibrating and nothing does appear. Hence my phone is now in hard bricked state. There appears no any recovery or download mode - when I try to use download mode by holding Volume Down+Home+Power buttons together for 3-4 seconds, it vibrates a little bit which feels like the phone is in download mode but unfortunately no any display is shown.
Also, odin is not showing any connected port on laptop. When I hold only Power button for 4-5 seconds, it turns OFF and automatically turns ON along with continue vibrating. Currently, I have put my mobile in download mode state, by pressing Volume Down+Home+Power buttons and it does not vibrate and is silent.
One think I notice that battery is charging if I connect to powerbank, because powerbank display shows charging status and decreases its power level (i.e. % when charging) but mobile screen does not show any type of charging status.
I surfed the internet about hard bricked issue and I found Jig USB trick, on this link:
http://forum.xda-developers.com/showthread.php?t=1331782
I tried the method of jig USB cable, but phone is still not showing download mode option. I surfed the internet again and found the solution of HARD BRICK through "debrick.img", but I am new and I don't know how to make "debrick.img" for samsung A700FD. So, friends please guide me and suggest any suitable solution using your expertise and experience.
Thanks
Click to expand...
Click to collapse
i'm facing exactly the same issue
did you solve it ?
rendey said:
i'm facing exactly the same issue
did you solve it ?
Click to expand...
Click to collapse
no, it will be solved soon by samsung warranty claim shops, they said its non warranty mobile so you have to pay charges of repair.
bc030400412 said:
no, it will be solved soon by samsung warranty claim shops, they said its non warranty mobile so you have to pay charges of repair.
Click to expand...
Click to collapse
how much u paid?
rendey said:
how much u paid?
Click to expand...
Click to collapse
2,000 PKR
bc030400412 said:
2,000 PKR
Click to expand...
Click to collapse
here in Egypt they can't solve it and they have to change the motherboard
i had to pay 800 EGP = 60000 PKR
Hey Guys, sorry for my bad english, i'm from Germany^^
I have a problem... My Pixel is dead. :/
I have try to install a Custom ROM https://forum.xda-developers.com/pixel-2-xl/development/rom-aquarios-8-1-0-live-support-volte-t3768174 via TWRP 3.2.2.0..
1. Bootloader Unlock
2. Booting TWRP/ Installing TWRP
3. Wipe Cache and Factory Reset
4. Flash AquariOS.ZIP via ADB Sideload
5. Reboot -> Dead
No Bootloader/ Fastboot mode reachable. Only the Battery Symbol shows, when i plugged the Phone via USB to the Computer/ Charger.
Before that, Android 10 Stock was installed. The Custom ROM Based on Android 9.0.
The Device is not recognized by the computer.. I really do not know anymore.
Is my Pixel now an expensive paperweight?
If more information is needed, please let me know.
Hope someone can help me^^
Thanks.
What happens when you press Vol. Up + Vol. Down + Power Button all at the same time? Hold them for a minute or two it should hard reset the phone.
eyeyousee said:
What happens when you press Vol. Up + Vol. Down + Power Button all at the same time? Hold them for a minute or two it should hard reset the phone.
Click to expand...
Click to collapse
Nothing else like the other buttons
But after 30 Seconds the Phone vibrating. ...turns on, off, on off...
The battery seems to be discharged. Must connect the cell phone to the charger after a short time.
Pixel 2 Picture
headcrash366 said:
Nothing else like the other buttons
But after 30 Seconds the Phone vibrating. ...turns on, off, on off...
The battery seems to be discharged. Must connect the cell phone to the charger after a short time.
Pixel 2 Picture
Click to expand...
Click to collapse
Charge the phone first and try once again. I think it's just the battery. The fact that it vibrates when you press the 3 buttons means the phone is still alive. [the red LED means the battery is fully discharge]
Note: Release the buttons once it vibrates
eyeyousee said:
Charge the phone first and try once again. I think it's just the battery. The fact that it vibrates when you press the 3 buttons means the phone is still alive. [the red LED means the battery is fully discharge]
Note: Release the buttons once it vibrates
Click to expand...
Click to collapse
Okay thanks, i will try it...
But the battery was actually charged when the problem occurred
Did you fix it?
I did not pay attention and 'upgraded' my working TWRP for S10e to TWRP for S10. No 'e'
Now I'm stuck at the very first boot screen 'Samsung Galaxy S10e, Secured by Knox'. After 6 sec the screen go black and then nothing more. No charging icon.
I'm not able turn off the phone for entering download mode with 'Vol down + Bixby' and USB. Any tip for this?
'Vol down + Power' for 7 sec reboots directly back to the same screen. I have not found any other boot-combinations that works.
The phone does not show up in Win.
Any tip? Hard bricked?
superlutin said:
I did not pay attention and 'upgraded' my working TWRP for S10e to TWRP for S10. No 'e'
Now I'm stuck at the very first boot screen 'Samsung Galaxy S10e, Secured by Knox'. After 4-6 sec the screen go black and then nothing more. No charging icon.
I'm not able turn off the phone for entering download mode with 'Vol down + Bixby' and USB. Any tip for this?
'Vol down + Power' for 7 sec reboots directly back to the same screen. I have not found any other boot-combinations that works.
The phone does not show up in Win.
Any tip? Hard bricked?
Click to expand...
Click to collapse
Press and hold volume down, bixby, and power for 10-20 seconds. That should get you to download mode.
klabit87 said:
Press and hold volume down, bixby, and power for 10-20 seconds. That should get you to download mode.
Click to expand...
Click to collapse
Thank you @klabit87, but no change. Adding Bixby to the boot prosess did not change anything. It just reboots to the same very first boot screen.
I'll try to drain my battery to power it off.
superlutin said:
Thank you @klabit87, but no change. Adding Bixby to the boot prosess did not change anything. It just reboots to the same very first boot screen.
I'll try to drain my battery to power it off.
Click to expand...
Click to collapse
Then try without the bixby button. You should be able to force it to bit into download mode.
BTW, on S10 series the classic way to enter Download mode is
-power off
-Vol down + Bixby, then add USB. Connecting USB boots the phone.
Voila, Download mode. Normally.
But I'm even not able to turn off...
I've been able to force it to boot to download by using the key combinations before. It's definitely not hard bricked. It can be recovered.. Just need to get to download mode.
Thank you klabit87, thats kind of good news! Now I just wonder how... I've drained the battery to be able to start from 'off'
(Now I do not know if it even charges? No indication)
MIRACLES!
Battery drained. Bixby + Vol down. Then connected USB (from cherger) and DOWNLOAD MODE!!!
But no connection when connecting to Win. (Yes, drivers installed) Can it be a bad cable? (It's not the original one, and when charging I sometimes got a little warning)
superlutin said:
MIRACLES!
Battery drained. Bixby + Vol down. Then connected USB (from cherger) and DOWNLOAD MODE!!!
But no connection when connecting to Win. (Yes, drivers installed) Can it be a bad cable? (It's not the original one, and when charging I sometimes got a little warning)
Click to expand...
Click to collapse
Yeah you'll want to get a good quality cable for sure. But seems like things will be sorted shortly
I lost 'Download Mode' before I got new cable and had to discharge again. New cabel worked as charm, Odin recognized it at once, correct TWRP installed, rebooted to Recovery, installed kernel & Magisk, and everything was back to normal!
Thank you klabit87 for encouraging me!
That's good news! Glad you got it worked out.