Database Users

Bricked, perchance? - TyTN won't boot

Hey all,
Having served me faithfully for 18 months now, my TyTN has finally given up the ghost. It refuses outright to boot.
Not a splash screen, not a backlight, no response at all no matter how long I hold that power button down.
When I plug it into the mains it displays reddish on the right hand LED, having left it plugged in for a while it stops displaying even that until I unplug it and re-plug it.
I've tested the battery with a voltmeter and the power on the phone with a circuit checker, there's not broken circuitry and the battery certainly generates a current.
Though it's not TOO urgent, as I have a backup phone (Nokia 3220, ugh) unlocked and in use, and it's not TOO horrible as I was about to order a Touch Pro anyway, I'd like to keep it strictly unbricked either for sale or for backup.
Any thoughts on either:
1. What the problem is, I'm absolutely baffled.
2. How I might go about fixing it.
Thanks, Forlornity

If its only displaying a red LED when you plug it in that generally means that the power sensor has been confused or the battery isn't touching the contacts properly.
Are you using the supplied charger or a 3rd party one/usb connection. The usb and most 3rd party chargers don't deliver the right charge. If its underpowered it may not trip the charging sensor.
Try pushing the battery tightly against the contacts, I had a problem whereby the contacts had been pushed in so the battery didn't connect properly.
Clean the contacts with a cotton bud and isopropyl alcohol (surgical spirits) to remove any corrosion. DON'T USE METHYLATED SPIRITS!!! It leaves a residue.
Thats all I can think of now.
Cheers...

Isopropyl you say?
It's a pity, I've actually got meths handy.
I'm using the stock charger, I suspect I might be suffering a RLOD, but none of the usual methods are working...
I'm gonna see if I can get hold of a charging dock for the battery from expansys or suchlike (unless anyone knows anywhere better?), see if that does the trick, if not, new battery, then if THAT fails I'll have no idea
Thanks for the tip on the isopropyl!

forlornity said:
Isopropyl you say?
It's a pity, I've actually got meths handy.
I'm using the stock charger, I suspect I might be suffering a RLOD, but none of the usual methods are working...
I'm gonna see if I can get hold of a charging dock for the battery from expansys or suchlike (unless anyone knows anywhere better?), see if that does the trick, if not, new battery, then if THAT fails I'll have no idea
Thanks for the tip on the isopropyl!
Click to expand...
Click to collapse
I have the same problem, and new battery didnt help! anyone got solution for this problem? I menage to charge battery with 2 wires, and phone starts, but it wont charge! i mean orange led is on, and it says CHARGING, but battery % is going down down until it reaches 0%!

[Q] Nook Simple Touch not responding?

This was what happened - my N2T went dead, and I charged it up to 100%. It has previously been rooted with TouchNooter, and since my market wouldn't open, I overrooted it with TouchSalsa. Or so I remember. It may be different. I just remember that I used 2 different roots over each other. Didn't think anything would happen...
Anyways, all was fine and dainty with the N2T till the day the battery's charge was depleted. Charged it to full - Battery Indicator went green - and then proceeded to unlock it.
It was still responding at the lock screen, but once I unlocked it, it went straight to my Android home screen, and it just hanged. It has been showing the Android homescreen for quite a while now (probably due to the static e-ink screen, I believe it has died for a long long time), and nothing I do will make it reboot. I thought about forcing the battery out, but it was not user removable.
n2T-recovery wouldn't work too, as I can't make it reboot.
Any answers as to how I could make it rebott and/or restore the firmware like how I could force an iDevice into DFU mode?
Any help would be appreciated, as I imported this device into my country and it is not possible for me to send it back .
If anyone has encountered this problem before, feel free to shout out here too. My Nook Simple Touch has died for around 2 weeks now. I was hoping that the battery would run out and I could charge it but.... the battery indicator STILL shows green when I plug it in.
Also, whenever I plug it into my computer, the connected sound that happens when you plug in a USB drive just sounds - followed immediately by the disconnect sound. This happens in a loop until I plug out the Nook.

Try disconnecting the battery (by opening the nook) ...

zholy said:
Try disconnecting the battery (by opening the nook) ...
Click to expand...
Click to collapse
Same issue, i already open the cover and remove battery, the screen still display screensaver. Then I plugged NT into wall charger , then removed (to try make it reboot). Plugged battery into again but , plugged charger . But nothing happened, still the same.
Any other solution?

Just a hint: It appears that the Nook won't boot without the battery in.
I don't know if it's an interlock with the temperature sensor on the battery.
The chip that does the power management is capable of powering a CPU with a dead/shorted/missing battery.

Guess no one had a similar issue?

It is the same with my NST. It was bricked when I root it back to factory restore. The battery light is green, do everything you did to the battery, still no respond. I am not in the US so I can not take my NST to the local B&N store.
I get my NST only 1 week...
PS:Finally I get my NST back following this thread
http://forum.xda-developers.com/showthread.php?t=1457971&page=14

Dead Nook Touch Fix - showing green light on charge

Thought I'd pass this fix along.
I have a rooted nook that would not power up (stuck on last display screen). When I'd plug it in -- it showed a GREEN light (already charged). I tried all of the reset fixes (20 seconds hold, 1 min hold, wait a minute, 15 secs) -- nothing worked.
Finally, I pulled it apart using this tutorial on Youtube:
[Can't post link because I'm a newbie --- just search for "How to Take Apart a Nook Simple Touch"]
Very easy to do if you have a T-6 torx driver. I unhooked the battery. Held down the power button (white button if disassembled) for about 30 seconds to discharge the board. Then hooked the battery back up, reassembled, plugged in -- and it started charging (orange light).
It looks like the issue was -- the nook was registering the battery as fully charged -- and it was completed depleted. The above fix seemed to reset it.
Hope that helps someone.
M

mjj777 said:
Very easy to do if you have a T-6 torx driver.
Click to expand...
Click to collapse
I thought that it was a T-5 Torx?

Renate NST said:
I thought that it was a T-5 Torx?
Click to expand...
Click to collapse
I thought that too, but -- at least with the torx set I have, t-5 was too small.

Had the exact same problem and your procedure fixed it! Thanks!

liquor said:
Had the exact same problem and your procedure fixed it! Thanks!
Click to expand...
Click to collapse
I also had this problem this afternoon. This procedure worked for me too. Thanks a lot because it helped to revive my reader.
However, for Nook to have such a problem and we need to fixed it in such a complicated way is not acceptable.

Fantastic. I had the same problem and now it is solved. Thank you.
After I bought a Nexus 7 my NST was resting for a while. Now, when I wanted to use it again, it was totally dead. Then your tip bring it back to life.

Thank you. When plugged, instead of "Charging (AC)" my nook was showing "Not Charging" in device info/battery. And in the end, it went dead.
After your fix, it works

That's the ticket
mjj777 said:
Thought I'd pass this fix along.
M
Click to expand...
Click to collapse
THANKS!
Just the tip I needed! :good:

Thanks!
That seemed to work
It's now showing the "Your Nook's battery charge is too low to power up. Please wait 15 minutes! screen and a loading animation :good:
I was seriously worried.
This is really weird...is there any reason for this issue?
I am quite new to the nook in general. (Nook simple touch glowlight in my case.)
Maybe we can check for similarities and find what was causing the problem.
So what did I do to my Nook:
Rooted, Nook Manager
Nooks gapps flashed, market downloads work (search not)
Installed a bunch of apps
Installed a custom Launcher (Lightning Launcher)
Installed Swiftkey as a custom keyboard (needed several language charactersets)
Left Wifi turned on all the time
Used the feature to restore the glowlight setting after being woken up again
Used the setting to skip the lock-screen swipe
Used a custom screensaver/lockscreen text
Changed button links in the main menu (n-button) to adress the original home, as well as the custom launcher home
That's what I can remember :/
And as far as I can remember I had more than 15% of battery (at least).

With the 1.2.1 software there is an automatic shutdown that kicks in at around 20% battery.
It doesn't work very well.
It will also give you warnings when it's under 20% but plugged into the wall and charging.

Green light issue, fix not work
I recently got a brand new nook simple touch and after trying various fixes to try and start my nook up I came across this. I was hoping this would work but it is still on green when battery is plugged in and charging off mains. The light is also green when plugged into mains without battery attached. It wont go past the "Fully charge before first use" start screen and can't find any more information on what to do.
Any help would be greatly appreciated.

Thank you for the fix. It worked the first time I tried but after only one day the problem presented itself again and after that the fix doesn't seem to work anymore. I'm leaving the battery disconected a few hours in addition, to try if it fixes this problem completely (but I'm not too optimistic).
Renate NST said:
With the 1.2.1 software there is an automatic shutdown that kicks in at around 20% battery.
It doesn't work very well.
It will also give you warnings when it's under 20% but plugged into the wall and charging.
Click to expand...
Click to collapse
This firmware, does it still count even if you have rooted the device? If so, do you think a downgrade to 1.1.1 would fix the problem? It is rather funny that I didn't have this problem until a couple of days ago, even if my NST is only 2 months old!

Update:
It seems that my battery is not yet dead after all. It turns out that I was measuring it wrong (thank you Engineering degree) and now it reads 4.15V as it is supposed to.
So, that brings me back to the theory that there is something wrong with my software. Right now it can boot for a few seconds but as soon as it goes to sleep mode (either by clicking on the "power" button or just waiting), it freezes. I recovered the official firmware and the problem persists.

Thanks, this trick fixed mine too!

Does anyone know if this fix can be achieved by simply charging the nook for an extended period of time? I have the exact same problem but I'm not so sure about opening the back cover as it voids my warranty and I only purchased this device in early June, and the problem appeared by the end of June :/
I have to confess, I never did charge my nook fully when I bought it as recommended, and simply dived in to using it as soon as the battery had a sufficiently high enough % as I was too excited lol

wwmhf said:
However, for Nook to have such a problem and we need to fixed it in such a complicated way is not acceptable.
Click to expand...
Click to collapse
I find it acceptable. After all, if we weren't messing around with the devices in the first place, we wouldn't ever need to do this.
Plus, really, it's not that complicated. A couple of screwdrivers and it's open. I mean, should we expect it to open itself with a voice command or something?
Anders

Thanks, this method worked ok with mine.

HI dudes,
it seems I've got a similar problem, green light on usb and stuck on "YOur Nook has turned off completely"
I take it apart with no success ... any idea ? Mu NST is nearly brand new, ever used a lot ...
thanks

I had the same problem, the reason was completly dead battery. After bat replacement nook works great!.
When battery have to small voltage, noow won't start to charge. You can try with external charger, to bring battery to life.
I think some nooks was matured in stock, thats why battery was completly discharged...and wont charge with nook.

Nook showing green light, main board drain and nothing
My Nook shows the green light when plugged in either to the pc or wall charger. I've held down the button twice for 30 seconds and disconnected the batery holding the power button 30+ seconds. Neither worked. Any more suggestions? I do notice a slight flicker of amber whilst holding the button down with the power cord plugged in.
Any help would be greatly appreciated!
bux

[Q] Red Light - Charging without back?

So, I plugged my Nexus 4 into a generic car charger and it went black instantly. The battery was at about 92%. With the hope that a proper AC or computer USB charge connection would bring up the white battery icon and fix things, I stopped by an out of town T-mobile. The manager tried the button battery-reset (up volume + power for 60sec) and I googled alternatives and tried the - enter recovery by pressing those buttons for 15sec off the charger and connecting while still holding down the buttons - trick. Neither worked.
The manger seemed familiar with that and the other button pressing tricks, and said that really, my only real hope would be to reset/replace the battery, but that would void my warranty. However, although the T-mobile site claims my Google bought phone is under warranty (and I've been paying for it each month), technically, it isn't. Under them or Google (any more). So, I purchased the tools to open the phone, as well as a replacement battery. In the interim, I tried to use all the button combos and various charging connections to get it to come back to life. I *did* manage to get it charging the old battery. I know because the blinking red light turned constant for an hour or two, and the battery got warm. I can only guess that the battery was too damaged to keep the charge however, because I could never get it to turn on during or after. My best guess is that the software battery reset allowed the phone to send a charge to the battery - at least once.
After getting my tools and replacement battery, I managed to get the phone open (with great effort - I think there must be a difference between batches there). I removed the old battery connection and looked to see if I could get the charge icon with it unattached and on the charger. I couldn't. Reconnecting the old battery didn't seem to make any difference.
I was about to go through the process of prying up the old battery when I realized that you can actually connect the new battery to the board connector without getting the old one out. So I did that. Leaving it charging like that for awhile didn't do anything, so I decided to do another software battery reset and I'm letting it sit on the charger overnight. All of this has been without reattaching the back.
So my major question is - does anyone know for sure if the phone actually charges the battery with the back off? I know there are important circuits there - which seem to shut down the phone after the battery or google image when not detected (at least that's my deducement after reading posts). But are those connections also used in charging? The Qi goes though the back to the charger function, so perhaps that connection has to be there? I would like to try and find out though beforehand. It took 2 hours and two mangled guitar picks to get it open the first time, and the second may be just as trying. (And believe me, towards the end, I was not concerned with being gentle.)
I am also curious about the four prong battery connection. I've seen the post about charging the battery using external sources by connecting to the two outer pins. Does that mean the two inner pins constitute a second circuit between the charged battery and the phone? And if I find another 3.8v battery fully charged, I could perhaps connect that to the phone instead by wires and get it booted into recovery? As to why I'd want to do that, I don't recall the last dated CM version I had installed, so finding that in their folder plus pulling off everything from /data... assuming I replaced this with another Nexus 4, I might be able to save myself a lot of setup hassle.
In terms of the red light... it actually seems to be an error code. When triggered, it blinks 7 times, and on the eighth stays lit for a bit before repeating.

cetkat said:
So, I plugged my Nexus 4 into a generic car charger and it went black instantly. The battery was at about 92%. With the hope that a proper AC or computer USB charge connection would bring up the white battery icon and fix things, I stopped by an out of town T-mobile. The manager tried the button battery-reset (up volume + power for 60sec) and I googled alternatives and tried the - enter recovery by pressing those buttons for 15sec off the charger and connecting while still holding down the buttons - trick. Neither worked.
The manger seemed familiar with that and the other button pressing tricks, and said that really, my only real hope would be to reset/replace the battery, but that would void my warranty. However, although the T-mobile site claims my Google bought phone is under warranty (and I've been paying for it each month), technically, it isn't. Under them or Google (any more). So, I purchased the tools to open the phone, as well as a replacement battery. In the interim, I tried to use all the button combos and various charging connections to get it to come back to life. I *did* manage to get it charging the old battery. I know because the blinking red light turned constant for an hour or two, and the battery got warm. I can only guess that the battery was too damaged to keep the charge however, because I could never get it to turn on during or after. My best guess is that the software battery reset allowed the phone to send a charge to the battery - at least once.
After getting my tools and replacement battery, I managed to get the phone open (with great effort - I think there must be a difference between batches there). I removed the old battery connection and looked to see if I could get the charge icon with it unattached and on the charger. I couldn't. Reconnecting the old battery didn't seem to make any difference.
I was about to go through the process of prying up the old battery when I realized that you can actually connect the new battery to the board connector without getting the old one out. So I did that. Leaving it charging like that for awhile didn't do anything, so I decided to do another software battery reset and I'm letting it sit on the charger overnight. All of this has been without reattaching the back.
So my major question is - does anyone know for sure if the phone actually charges the battery with the back off? I know there are important circuits there - which seem to shut down the phone after the battery or google image when not detected (at least that's my deducement after reading posts). But are those connections also used in charging? The Qi goes though the back to the charger function, so perhaps that connection has to be there? I would like to try and find out though beforehand. It took 2 hours and two mangled guitar picks to get it open the first time, and the second may be just as trying. (And believe me, towards the end, I was not concerned with being gentle.)
I am also curious about the four prong battery connection. I've seen the post about charging the battery using external sources by connecting to the two outer pins. Does that mean the two inner pins constitute a second circuit between the charged battery and the phone? And if I find another 3.8v battery fully charged, I could perhaps connect that to the phone instead by wires and get it booted into recovery? As to why I'd want to do that, I don't recall the last dated CM version I had installed, so finding that in their folder plus pulling off everything from /data... assuming I replaced this with another Nexus 4, I might be able to save myself a lot of setup hassle.
In terms of the red light... it actually seems to be an error code. When triggered, it blinks 7 times, and on the eighth stays lit for a bit before repeating.
Click to expand...
Click to collapse
I RAN INTO A SIMILAR PROBLEM
I found that holding the power button for a while allowed my nexus 4 running stock Lollipop 5.1 to boot back up.
Have considered that you may have a faulty USB port ?
Just pop the old battery out install the new one plug in the charger and it will charge. You can boot up without the back on. The back contains the antennia.... and the NFC circuit board.
Good luck

Blacksmith5 said:
I RAN INTO A SIMILAR PROBLEM
I found that holding the power button for a while allowed my nexus 4 running stock Lollipop 5.1 to boot back up.
Have considered that you may have a faulty USB port ?
Just pop the old battery out install the new one plug in the charger and it will charge. You can boot up without the back on. The back contains the antennia.... and the NFC circuit board.
Good luck
Click to expand...
Click to collapse
Well, still no luck. I ended up putting the new battery in and closing it up to try the Qi charger, but all I can get is either 7 or 10 red blinks followed by a short solid light. No white battery charging symbol or anything else.
When you say a faulty USB port, what are you referring to? The cable works (though I've also tried my Nexus 7 one too) and even though it won't boot, my computer does recognize that something is there when I plug my phone into it (it just can't figure out what's plugged in - which is normal). I want to say that it's trying and failing to charge the new battery. At this point, I think the charger messed up more than just the battery.

Galaxy s5 won’t boot up

Please can someone help me with a problem I’m having with my Samsung Galaxy s5.
I put my phone on charge before I went to bed and when I woke up it was still showing a red LED. I knew this was wrong because it should have had enough time to charge and turn green. I had not powered the phone off before putting it on charge and I plugged it into the same USB 3.0 charging lead I have been using for the past six months. I unplugged the phone and pressed the power button to light up the lock screen but it didn’t light up.
I’m thinking possibly something has either shorted or over heated and fried something either on the charging port assembly or one of the chips adjacent to the port while the charger was plugged in. It seems like only a trickle of power is getting through to the phone. When I plug a different USB 2 charging cable into the phone, without trying to power on, the charging icon appears but shows no charge at all in the battery.
I have also tried the spare battery I have but it’s still the same. I know the spare battery is 100% fully charged because I store it in a separate charging/storage box which shows a green LED when it is full. In fact the one which was in the phone at the time is also fully charged according to the charging box. Neither battery has got warm at all inside the phone. I’m confident both batteries are fully charged and totally fine and the problem isn’t with the batteries.
At this point I removed my sim card and also the MicroSD card. I needed the sim to use in my spare phone and I wanted to see if the sd card could be causing the issue but after again trying a normal reboot it made no difference.
I’ve tried several possible things I found on google but nothing has worked. Between each different thing I tried I had to remove the battery for 10 seconds and insert it again to get it out of the boot loop so I could try something else.
Initially when I tried booting into safe mode, then recovery mode and then download mode it brought up the screens for those but in each case after a few seconds the phone powered off and went into a boot loop so I couldn’t attempt any recovery options such as clearing cache etc. Now I cannot even get it to start any of those modes at all and all that happens is the phone does a little vibration, displays the Samsung logo and then just boot loops no matter what I try.
I have tried removing the battery and leaving the phone for a few hours then powering on again but it still just loops.
I have tried pressing and holding Vol-down when plugging it into my PC using a different USB 2 cable and windows acknowledged a phone was plugged in but said it couldn’t connect or recognise the phone and suggested the phone could have a fault.
I don't know if maybe my USB 3.0 lead has a fault that could have caused it or if there could have been some electricity spike while the phone was plugged in, or as I said a component has just fried.
I strongly suspect this is a hardware fault and not a software fault but as I’m not a phone engineer I have no idea about how to trace any possible hardware issues or what might have gone wrong. I would really appreciate any help or suggestions about what the problem might be as this has been a great phone for the last 2 years since I got it and I’d be sad to have to junk it and buy a new one.
Thank you.

I would not junk it yet......
You had mentioned that you go through a lot, just to get phone into Recovery ( " Initially when I tried booting into safe mode, then recovery mode and then download mode it brought up the screens for those but in each case after a few seconds the phone powered off and went into a boot loop so I couldn’t attempt any recovery options such as clearing cache etc. Now I cannot even get it to start any of those modes at all and all that happens is the phone does a little vibration, displays the Samsung logo and then just boot loops no matter what I try." )
OK, just my 2 cents here on this... Why not trying to goto Recovery by pressing and holding the Volume Down (vol-); Home button, and The Power button all at the same time. (yes, if you have a Recovery, and its works, you should be able to boot right into Recovery- >Now, (I would, cause I've been there..) I would also have a PC going with Odin open (Plus the Latest Stock Rom) ... If it works, you would flash the Stock ROM, to clean up anything, giving you all stock, but you can change that of course ...then go from there...
Second, if you can not still get to Recovery.... Have you tried a Stock USB Cable, only asking.... Obliviously something is a miss... with Power... IF phone is off, and you plug it to a power source ... then system has power, and these can power up with just the usb cable, without having the battery in..... Been there. Can add the simple fact, if using just a Micro SD cable, they can bend the Power Board. Believe me (Had to fix the Wife's S5 a few Frinkin' times....) That is why, I say using the Stock Cable, or even a USB 3.0 Cable (like the stock one) does help with power issues when the Micro has bent up the power board...
Will check back and see if this may have you to Recovery or fixed... sure hope this can help you out

Thanks for replying godofsalt.
At the time the phone was plugged in to my USB 3 lead which charges faster and all I can think is that perhaps there could be a fault with the lead or the higher ampage of using this lead caused a circuit to burn out.
I have around a dozen USB 2 leads and I've tried your idea with 3 different ones but none of them will fire up the phone at all with the battery taken out.
I am sure this is going to need some kind of replacement either of the charging port or the motherboard. I don't rate my chances of trying to do it myself and I don't think it will be economic to take it to a shop so I've found a better option by buying the same phone which is second hand but in good condition. That way I know I have all the additional accessories already for probably the same price any shop would charge to fix it.
In future I'll stick to using a decent USB 2 lead on the 1 amp charger I used to use before and hopefully this will not occur again.

G500F battery graphic/boot loop
Had the same problem a few days after installing a 9.0 Rom. My battery is brand new and all cables aren't too aged, so I thought this had to be a physical fault of some kind, but then I had the thought to flash an older bootloader and just like that my battery started taking a charge again and I could boot up. Switched to Flyme os for a while the went back to 9.0 again, with the lastest bootloader and the thing stopped working again. Don't know too much, but I'd try and flash a different bootloader to see if there's any difference. My device failed right at the Galaxy logo, then looped the charging graphic endlessly but would strangely go into download mode and not fail. Don't know if this helps, just thought I'd share my solution.

Thanks for replying henderia93.
My symptoms are very slightly different in that the phone couldn't maintain any of the modes I tried for more than a few seconds before going back to the boot loop again so there was no chance of trying any software fixes including flashing the ROM. Now it won't enter any of those modes at all. I'm certain that's due to only a trickle of power getting through to the main board, not enough to maintain any recovery modes, so there is just enough power for it to attempt to boot, but no more so it just keeps looping, most likely caused by something that has blown while on charge.

MarylinC said:
Thanks for replying henderia93.
My symptoms are very slightly different in that the phone couldn't maintain any of the modes I tried for more than a few seconds before going back to the boot loop again so there was no chance of trying any software fixes including flashing the ROM. Now it won't enter any of those modes at all. I'm certain that's due to only a trickle of power getting through to the main board, not enough to maintain any recovery modes, so there is just enough power for it to attempt to boot, but no more so it just keeps looping, most likely caused by something that has blown while on charge.
Click to expand...
Click to collapse
I ha e taken so many of these a part... Like I may have mentioned, there is a Board, just for the USB (data and power (i still have 2 of them)).... In short, you really have to pretty much take the phone a part. Being very careful with the Screen, and the "Sticky" LEDs and the Home button. There is a lot to it actually.
Like I said, been there done that... Cheap to get, takes some time but it is possible to replace that board. It's a separate board different from the actual main CPU board.
I would have to find it, but I had a manual, for taking these a part.

godofsalt said:
I ha e taken so many of these a part... Like I may have mentioned, there is a Board, just for the USB (data and power (i still have 2 of them)).... In short, you really have to pretty much take the phone a part. Being very careful with the Screen, and the "Sticky" LEDs and the Home button. There is a lot to it actually.
Like I said, been there done that... Cheap to get, takes some time but it is possible to replace that board. It's a separate board different from the actual main CPU board.
I would have to find it, but I had a manual, for taking these a part.
Click to expand...
Click to collapse
While I've been looking for answers about this I've seen teardown videos for the s5 so I can see what the port assembly looks like with it's little PCB behind it. As I have a replacement s5 on it's way all I need to decide now is whether to keep the old handset for spare parts or see if I can follow the teardown video to try and install a new port assembly to get the phone working again as a spare.

MarylinC said:
While I've been looking for answers about this I've seen teardown videos for the s5 so I can see what the port assembly looks like with it's little PCB behind it. As I have a replacement s5 on it's way all I need to decide now is whether to keep the old handset for spare parts or see if I can follow the teardown video to try and install a new port assembly to get the phone working again as a spare.
Click to expand...
Click to collapse
Yep, me too, seen many vids on the tear down. I decided to go a bit more, IMHO, to have an actual manual, PDF, when I did my first one, many years ago. So, can read, and use photos wisely. Seen too many Utube crap, where the break it, destroy it..... crazy!
Well, at this age, not too sure what to do my self. In our case, our present service is cheaper to Keep these. Grandfathered in, and we pay a but less, than going to any other carrier. Plus, these newer phones are not cheap at all.
True, it up to you. hope all goes well.

Sorry I am a novice so please excuse my question.
Are you assuming that the usb port is shorting even when no usb cable is inserted? As you put a fully charged battery in with no change it would seem that the act of charging is not involved.
Have you tried a voltmeter to check the voltage at the battery charging pins?
Have you tried to check the voltage at the two pins commonly used for a wireless charging adapter (to the upper left of the battery) to see what the voltage is?
Sorry if I am off base.