I know that this questing was made thousand times...but my problem is a little bit different...
My dad has the N1 and he destroy the power button with his detestable streghness, and stubbornness to shoutdown the display everytime he did something...I hate his way to use phone and than blame me! -.-
So know I have to solve this problem...
First of all I have to power up the phone...I've follow the trick with the battery it started one time, then I can't start it anymore...
Then I'd like to know if I can take it to customer care also if there is a custom rom but I didn't unlock the bootrom just root it with "superoneclick root"
If my phone is not in warranty how much costs to replace the power button?
Can I repair it on my own? maybe the little power button inside is just moved and the button outside can't push it...
I've experience with a P990 that I've disassemble to change the cover...
Thanks a lot for your help...
Your problem is ABSOLUTELY THE SAME as any other "My power button died!" problem.
Please bother reading the zillion threads on the subject, looking at the price of flex cable on eBay, looking at the Nexus One disassembling guide on Youtube, and deciding what to do.
I don't see the fuzz about not getting the phone to boot up. Are you 100 % sure you're doing exactly as described?
First, plug in the USB cable or the charger, with the battery out. Insert the battery as soon as you see the led light lighting up. Now remove the battery and keep it out until you see the led light fading away. Now insert the battery again all while the charger or USB cable is still attached and it should boot up.
You might have to repeat it around four times, however.
When my power button first broke, I thought I was screwed and I tried the battery trick and it wouldn't work. Then I rechecked the how-to guide again, thoroughly this time and I managed to get it to boot up. It seems to boot up at a ranom amount of times. Sometimes, one single battery pull and insert is enough, while other times it takes two to four tries.
Now, though, I don't see the need of paying a lot of money to replace it as I have learned to live without it completely. With the use of either volume rocker wake or trackball wake. The latter I use all the time if it works well with the ROM I use. When I used Sense, I had to go with volume rocker, but it did the job. If I need a four-way reboot, I simply open "4ext recovery control" (which for the record is worth the money for the full app) and then enter "power menu" that way.
The power button on the Nexus One is really not necessary as there are plenty of workarounds.
This is like the millionth topic describing the same thing and I'm sure a simple search could have helped you more.
I've try your method and nothing I can't start my phone anymore, the light is always green and the last time I success to power on N1 was when the light was orange
I don't know what to do also because it's installed cyanogenmod and I think that is out of warranty....
If I just can power on the phone I can at least save the contact list
EDIT:
if I plug the phone to the charger with no battery, I have a led green and red that go on and off
This is normal and expected.
Green light means charged battery.
Alternating light means no battery.
Everything is just as it should be.
I guess you won't bother reading/trying, so I'm not sure why should anyone bother answering.
Jack_R1 I've read every topic on the board about the power button...so I don't want to make a bad discussion here with you...
I've read that I have to call htc or open it by myself...but I'd like to know:
1. the phone won't power on with green light... so the trick doesn't work?
2. can htc recognize that I have cyanogen if the phone doesn't power on?
3. can I repair on myself without buy a new power button that I can't find on ebay? or better I have to replace the entire flex mobo and the cpu?
RealPsygnosis said:
Jack_R1 I've read every topic on the board about the power button...so I don't want to make a bad discussion here with you...
I've read that I have to call htc or open it by myself...but I'd like to know:
1. the phone won't power on with green light... so the trick doesn't work?
2. can htc recognize that I have cyanogen if the phone doesn't power on?
3. can I repair on myself without buy a new power button that I can't find on ebay? or better I have to replace the entire flex mobo and the cpu?
Click to expand...
Click to collapse
1. Works for me.
2. Sure they can. They can also refuse repairing it or even charge you for it.
3. You only need to switch the flex cable. No need to replace both the logicboard and cpu.
I'm not sure why you can't get it to work. I think you're not exactly doing what you should with the battery trick. I'll try to explain as easy as I can:
1. Insert the USB cable or a charger and remove the battery.
2. The led will start to blink, but that is normal.
3. Insert the battery. Remove it again and wait until the led starts to blink
4. Now insert the battery again.
You shouldn't have to repeat this more than four times.
You can repair it yourself, if you search the forum, find the photo of the flex cable that someone posted with the exact point you'll need to solder to, disassemble your phone, and solder a very thin wire between this point and the power button. Personally, it took me 1 hour to do it for a friend, using lab microscope, super-thin wires and very thin soldering iron. If you have the equipment and the skills - go for it.
But if you had the equipment and the skills, you'd most likely be able to write "nexus one flex cable" on eBay and find this:
http://www.ebay.com/itm/OEM-FLEX-CA...387?pt=LH_DefaultDomain_0&hash=item2a11775bcb
HTC quote for repairing out-of-warranty N1 with power button failure will most likely be equal to the price of used N1 these days.
Related
Hey guys, my LCD broke, It was a AMOLED not SLCD, I bought this piece off ebay:
http://www.ebay.com/itm/260900702599?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I put everything back for the second time now, first of all the device doesn't come on, but when I plug the AC power it shows charging light.
I'm pretty sure my old screen is AMOLED..
I made sure all the connectors where tight on the board. any help?
It wont power on, did I break something?
I'm pretty screwed guys, been at it for like 5 hours I'm done for tonight
Here is what I've conluded. I detached the digitizer from the lcd I made a mistake and removed the factory "tape"
Is and in the process the little power button came off.
So what are my chances now?
Can the digitizer be taped back to the lcd? or Do I need to get a new digitizer which includes an LCD? so as to preserve the factory tape?
As far as the power button goes, I'm not talking about the plastic bit, I'm talking about the actual button underneath. It seemed to be holding on my a little thread anything. Is that "thread" a connector or the button functions fine without it?
I put iit back and sealed the phone up, it seems to be pressing. But of course the phone wont still come on :/
Have you tried the "jump start" method for people with broken power buttons? ie, plug the phone into the wall with the battery out and insert the battery. It might take a few insertions for it to work.
evilkorn said:
Have you tried the "jump start" method for people with broken power buttons? ie, plug the phone into the wall with the battery out and insert the battery. It might take a few insertions for it to work.
Click to expand...
Click to collapse
How many seconds? It didn't work :/, the charging light just comes back on.
S_Dot said:
How many seconds? It didn't work :/, the charging light just comes back on.
Click to expand...
Click to collapse
Might have to give it a few tries. Like up to 10.
Sent from my Nexus One using XDA App
evilkorn said:
Have you tried the "jump start" method for people with broken power buttons? ie, plug the phone into the wall with the battery out and insert the battery. It might take a few insertions for it to work.
Click to expand...
Click to collapse
this happened to me last weekend when i replaced my trackball. my power button gave out.
That cable is a major issue with our N1s. You can order a replacement on ebay (or other sites) for usually around $40. It is called the flex cable.
The jumpstart method should work assuming nothing else is screwed up. But it isn't an exact science. Usually if you have your charging cable plugged in, you pull out the battery and put it back in, the phone will vibrate after a few seconds and start booting. If it doesn't, pull the battery out and try again.
It seems there are already several threads about this seemingly common issue with this tablet, but I've tried the normal checks and still can't get any life out of my dad's nexus 7 whatsoever.
I've found several threads stating it's just a loose battery, but in this case it isn't. I've checked absolutely every single connection I can get to without removing the void if removed bits, and can't find anything suspect. However it still won't turn on, won't charge, etc. It's not a faulty charger or cable either, we've all got android in my immediate family and we can't get any life out of it with any lead or charger. It was simply working one day, it was turned off the way it always is once my dad had finished using it, and now it simply won't come back on again.
I also saw some people say to get it into bootloader mode by holding volume down and power straight after plugging it in, but that too does nothing whatsoever?
Does anyone know of anything else I can try, short of sending it back to Asus?
How long have you had it?
This sounds like something that should be addressed as a warranty situation, as anything else may be kludgy at best, and may fail again just after your warranty runs out.
I wouldn't really waste any more time.
JMnsHO.... :beer:
My dad has had it about half a year, maybe a little more. But he bought it from Comet, who no longer exist since they went under just after Christmas, so he can't return it to them now. Unless it'd just go straight to Asus instead.
I had exactly the same issue.......I fixed it by disconnecting the battery and reconnecting which by the sound of your post you have already tried.......you should be able to go straight to Asus for repair.......good luck....
Sent from my Evo 3D GSM using xda app-developers app
After probably 30 days it would need to go back to ASUS anyway.
As I'd said, I wouldn't waste more time fussing with it.
They'll take care of it and still preserve the balance of the warranty.
If you messed with it too much, you may find yourself with none at all, and on the hook for the cost of the repair.
Make the call.. :thumbup:
Well I've not done anything that shows I've been in there like I say, so any manufacturer warranty should still be intact. Same goes for the software too, not rooted, on the standard rom and kernel, etc.
I was just hoping I could fix it for my dad without having to send it off.
Not yet, but anything else would be more 'intrusive'.
How long have you been working on it?
Not long, only 10 minutes here or there to see if I could find something loose. I might check the voltage of it's battery to see if it's flat, and also check to see if any power is getting to the battery while charging. That'll help prove if the battery or it's control board is dead or not.
Just checked the battery over. It's a 3.7v battery according to the label, and my multimeter shows 3.7v, so the battery is fine with no loose connections. At the connector for the power button ribbon cable, I get the 1.8v that should trigger the tablet to power up when the power button is pressed, and the power button is good too, only showing continuity when pressed. Again, no loose connections. But the bloody thing still won't turn on.
Any more ideas?
When you say that you "tried all the normal checks", does that include all of the fixes listed in the sticky dedicated to this subject?
billykxda said:
When you say that you "tried all the normal checks", does that include all of the fixes listed in the sticky dedicated to this subject?
Click to expand...
Click to collapse
Yes, your thread is about a faulty or loose battery. As I've said, it's not a loose connection and I've now tested the battery too. Unless you can think of something that I've missed?
StuartTheFish said:
Yes, unless you can think of something I've missed.
Click to expand...
Click to collapse
That sticky has all of the well-researched methods of addressing the collection of related issues (won't turn on/won't turn off/battery status). It is not only about a faulty or loose battery - there's much more.
Give it a read and let me know if there's a fix in there for you.
billykxda said:
That sticky has all of the well-researched methods of addressing the collection of related issues (won't turn on/won't turn off/battery status). It is not only about a faulty or loose battery - there's much more.
Give it a read and let me know if there's a fix in there for you.
Click to expand...
Click to collapse
I have read it all, and unfortunately there's nothing in it for me.
If your able to get to bootloader maybe try to power off then let it charge for awhile then boot, or hold the power button for a good min
It won't turn on at all, so it can't get into the bootloader. Tried already.
StuartTheFish said:
It won't turn on at all, so it can't get into the bootloader. Tried already.
Click to expand...
Click to collapse
I know you tried almost everything in the box, but when you plug it in the wall and press and hold the power button do you see the screen light up but still black?
If yes ( hopefully ) then continue holding power button then press VOL down til arrow pointing with START appears. Cycle through with VOL down til you see power off and select.
After it shuts down unplug from wall and replug and let it sit for a long awhile
If this didn't help at all sorry......good luck....warranty?
RubbleTea said:
I know you tried almost everything in the box, but when you plug it in the wall and press and hold the power button do you see the screen light up but still black?
If yes ( hopefully ) then continue holding power button then press VOL down til arrow pointing with START appears. Cycle through with VOL down til you see power off and select.
After it shuts down unplug from wall and replug and let it sit for a long awhile
If this didn't help at all sorry......good luck....warranty?
Click to expand...
Click to collapse
Nothing happens whatsoever mate, even while plugged into the charger. Tried the original charger, my s4 charger, my old HTC chargers, from the pc via USB, etc. None of them make any difference.
Got a feeling it might be the motherboard, as it has power. Can't be the display since I've tried getting a logcat from it after holding the power button for a while to make sure it would have turned on. ADB just kept saying "waiting for device" as if it wasn't plugged in, confirming it isn't even turning on.
Can anyone think of anything I've missed?
StuartTheFish said:
Can anyone think of anything I've missed?
Click to expand...
Click to collapse
Can the pogo pins be used to charge? bit of a long shot and you`d need to buy/borrow a dock of some sort. Definitely sounds like a hardware failure issue.
Sent from my Nexus 7 using xda app-developers app
Pogo pins?
It already seems to be charged though.
The HTC One (m7) was a incredibly designed device, with one problem repair-ability.
Some back story I created a 5v OTG charge out of cardboard, washers, and a hacked up USB - mUSB cord.
Worked great when I tested it, used rechargeable AA batteries. Well stupidly i crossed the negative and positive wires by accident. The phone instantly powered off. But no smell of smoke or burning. Would not power on and no charge light. Button reset would not work. Completely dead, or so you think!
This could be substituted with a nice power surge in normal circumstances, but I'll continue.
So I took a chance, disassembled the phone and disconnected that battery, low and behold it came back to life.
So there is very good circuit protection built into this phone. So as general advice, if you run it a situation where your out of warranty and your phone wont power on try disconnecting the battery before chucking it for a new one.
Only problem is they are so hard to get apart I shattered the LCD, touch part was ok though which is kinda funny. Anyways I got a whole new shell and screen assembly coming and I'm gonna modify the tabs so its easier to access the inside of the phone should the need ever arise again.
yeah, great tip, lets all smash our screens to reset the battery..
How about not rigging up a dodgy charging option and use it normally and safely, would be much less costly...
I think the story is interesting and adds knowledge to the forum. I wouldn't take it as a advice, but it does let you know that even when it seems that your phone has been killed by a hardware issue, it can still come back to life. Maybe if he had left it unplugged for some time it would eventually had worked without intervention.
twerg said:
yeah, great tip, lets all smash our screens to reset the battery..
How about not rigging up a dodgy charging option and use it normally and safely, would be much less costly...
Click to expand...
Click to collapse
I'm pretty sure the tip wasn't "let's all smash our screens to reset the battery".. it was more along the lines of "you may not be dead in the water if you don't get any reaction from the power button". I think if he were to write a tutorial, "Smash the screen" wouldn't be a step...
homeslice976 said:
I'm pretty sure the tip wasn't "let's all smash our screens to reset the battery".. it was more along the lines of "you may not be dead in the water if you don't get any reaction from the power button". I think if he were to write a tutorial, "Smash the screen" wouldn't be a step...
Click to expand...
Click to collapse
My point is that he attempted to fix it himself, knowing it is a hard phone to open.
By doing so he shattered the screen.. this will happen to others so why follow the suggestion.
Would have been avoided if he did not make a dodgy peripheral and instead used known safe charging options..
I would send it in for repair instead of attempting an unknown fix.. Each to their own
i crossed the negative and positive wires by accident too and the phone wos death ,i do nothing ,after half hour power get back and phone turn on normally and work like nothing happend
Hi to everyone,
I bought my S4 in Germany and I live in France.
My phone, after 10 months started to exhibit strange behaviors:
- Turning off and then turning on by itself
- Turning off and then not turning on, so I had to remove the battery, reinsert it and it then vibrates and turns on for few seconds and then it turns off again
- Sometimes it is able to turn on and it worked
So, I sent it back to the reseller (it was not amazon directly). They told me it presented traces of water and they repaired it on goodwill even if the smartphone should not be repaired because water is not into warranty.
Anyway they sent it back to me, it worked for 1 month, and now I have a phone that doesn't turn on anymore. I told them, they told me it is not their problem and it is not anymore in warranty because I had ONLY one year of warranty (I bought it 'as new' on amazon). Anyway they sent me a new battery and I tried the battery on another S4, it is working, so the battery is not the problem.
I went to an authorized shop to get it repaired but they told me that they wanted crazily expensive money. So, I am a robotics engineer, I decided to repair it by myself and that is why I am here.
I want to ask you what could be the problem. I read until now 2 possible reasons:
1) The power button is faulty. In this case is there any way to connect the contacts the button connects with an hard connection?
2) The USB board is not charging the battery. I tested with a multimeter and the + - voltage on the battery was always around 2.62/2.64 V. I don't know if this is normal but I checked that the part is not expensive.
Thanks a lot for your help.
The USB board isn't expensive but I don't believe the USB board is the problem here. Lithium batteries come partially charged when new, so if the S4 didn't turn on after putting the new battery in it, then the only remaining issue is the power button. Buying a replacement power button should be just as inexpensive as that USB board. Plus, being a robotics engineer you should have basic knowledge of soldering, meaning you could replace the button yourself.
It does sound like a power button issue.
A set of 4 buttons is about 5 dollars on the internet.
I'd recommend opening the phone up and checking the power button with a voltmeter.
If it is the power button, then simply replace it. It doesn't seem hard. Here's a guy with a power button issue. You can see where to check and how to replace it.
Thanks. I will try with the voltmeter. Thanks a lot.
So, I unmounted everything and tested the power button. I am quite sure it is faulty. ( I will be 100 % tomorrow because I could test only with a really bad multimeter) .
Anyway I have a question in the meanwhile. Is it normal that the red charging led doesn't show up when I connect to the power supply ? I think it could be possible that the faulty button induces a problem like that but I would like your opinion about it.
Thanks.
I don't think the power button would affect the LED. A friend had a problem with the power button, but I don't think it cause any problems with the LED. I haven't noticed. But my friend would've noticed if there was any and would've told me, which wasn't the case.
I tested with the GOOD multimeter and it happens what it is showed in the video you posted me in a previous post.
The button has 3 pins:
pin1
pin2
pin3
If I check for continuity between pin2 and pin3 there is, as it should be in a working button.
If I check for continuity between pin1 and pin2 there is, as it should NOT be in a working button.
Having continuity on both checks means the buttons is continuously pressed. So I guess you will have to change it.
Yeah, I know. I already ordered it. It will arrive on Friday.
What I was wondering is if this could give also the problem of the LED. What do you think?
I removed the button. I placed the battery in the phone. Put the charging cable. But nothing is happening. This looks strange to me because without button it should at least appear the battery icon. What could it be ?
Thanks
Maybe your phone bootloader is so old that it came to a situation where samsung's signing for this bootloader version has expired then ABOOT doesn't allow you to boot.
Just a suggestion and nothing else.
But this could be else used by samsung to force you update your phone.
minidiable said:
I removed the button. I placed the battery in the phone. Put the charging cable. But nothing is happening. This looks strange to me because without button it should at least appear the battery icon. What could it be ?
Thanks
Click to expand...
Click to collapse
Not if the circuit isn't complete. The button completes the circuit, which would explain the lack of any indicators.
Killnolife said:
Maybe your phone bootloader is so old that it came to a situation where samsung's signing for this bootloader version has expired then ABOOT doesn't allow you to boot.
Just a suggestion and nothing else.
But this could be else used by samsung to force you update your phone.
Click to expand...
Click to collapse
Why should be that ? My phone was working perfectly before and at some point the bootloader is not good anymore. Anyway thanks for the hint
Strephon Alkhalikoi said:
Not if the circuit isn't complete. The button completes the circuit, which would explain the lack of any indicators.
Click to expand...
Click to collapse
Ok. Thanks . This still gives me some hope. I will wait for the button and come back here soon.
Thanks a lot for your amazing help.
This community rocks
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.
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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.