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SOLVED!!! [Q] Help! Nexus S won't turn on!!! :(

Hi everyone.
Last night I went to bed and as usual I check my Nexus S battery.
It indicated me very low battery, and turn it off.
So far, no problem, i thought, well there isn't enough battery to turn on the phone. I connected the cellphone to the wall charger and went to sleep.
Today i woke up and try it to turn it on, the screens just flashes and nothing happens.... Removed battery, try it again, the same.
Try 100 times that, and there was one time a Warning of Bootloader came up. Don't know what i did different thought, but now i can't get the same result.
Actually now the screen doesn't even flashes when i press the power button.
The battery seems to be charged, i tested with a LED. My wall charger is also working cause it's able to charge my old phone.
And now to get things even worse, as i bought it in asia, i don't have warranty, and the gran finale, Nexus S is not been sold in Brazil due to some regulatory issues, so Samsung said it they can't help me with an imported product.
The Cellphone is brand new, doesn't have not even ONE month of use.
It's not rotted, and it was in the latest android firm.
Does anyone have any idea what can i do????
The phone doesn't respond to anything .
Tnks a lot in advance.
PROBLEM SOLVED!!! SEE THE LAST THREAD. BR!

rafaelqds said:
Hi everyone.
Last night I went to bed and as usual I check my Nexus S battery.
It indicated me very low battery, and turn it off.
So far, no problem, i thought, well there isn't enough battery to turn on the phone. I connected the cellphone to the wall charger and went to sleep.
Today i woke up and try it to turn it on, the screens just flashes and nothing happens.... Removed battery, try it again, the same.
Try 100 times that, and there was one time a Warning of Bootloader came up. Don't know what i did different thought, but now i can't get the same result.
Actually now the screen doesn't even flashes when i press the power button.
The battery seems to be charged, i tested with a LED. My wall charger is also working cause it's able to charge my old phone.
And now to get things even worse, as i bought it in asia, i don't have warranty, and the gran finale, Nexus S is not been sold in Brazil due to some regulatory issues, so Samsung said it they can't help me with an imported product.
The Cellphone is brand new, doesn't have not even ONE month of use.
It's not rotted, and it was in the latest android firm.
Does anyone have any idea what can i do????
The phone doesn't respond to anything .
Tnks a lot in advance.
Click to expand...
Click to collapse
Is it showing full bars when you connect the charger and press the volume button?

dude, i think there is something wrong with our country. take a look at this thread: http://forum.xda-developers.com/showthread.php?t=1111761
i think you tried everything possible, can't see what else you could do. Looks like a hardware issue..
if i were you, i'd claim for warranty, even if you bought in hk, it has warranty, of course you will lose shipping cost, but, it's better than lose the phone! =o]
good luck!

GchildT: Nothing happens when i connect the charger to the cellphone.
Already tried the hard reset (volumn up + power button) nothing happens
thiagodark: Tell me about it, i read this thread ealier this morning, actually i send it a private message asking him if he solve his problem... samsung is really disappoint me.
The thing i found most said is that the phone is bran new! Not a month year old.
And i didn't do anything, not even rotted, dropped, anything!

PROBLEM SOOOOOOOOOOOLVED!!!
The problem was that there was a little tiny piece of plastic dirt in the usb male plug in the phone! And that piece was able to make a faulty contact with the charger, the phone battery was dead as hell.
Can you believe that?????
I almost sent my phone across the world in order to use the warranty.
Now I'm back with my cellphone up , happy as hell!
Tnks a lot, and remenber to always clean everything before use more drastic measures.
BR

rafaelqds said:
PROBLEM SOOOOOOOOOOOLVED!!!
The problem was that there was a little tiny piece of plastic dirt in the usb male plug in the phone! And that piece was able to make a faulty contact with the charger, the phone battery was dead as hell.
Can you believe that?????
I almost sent my phone across the world in order to use the warranty.
Now I'm back with my cellphone up , happy as hell!
Tnks a lot, and remenber to always clean everything before use more drastic measures.
BR
Click to expand...
Click to collapse
Wow... good for you man. Its rooted btw
Sent from my Nexus S 4G using XDA App

rafaelqds said:
PROBLEM SOOOOOOOOOOOLVED!!!
The problem was that there was a little tiny piece of plastic dirt in the usb male plug in the phone! And that piece was able to make a faulty contact with the charger, the phone battery was dead as hell.
Can you believe that?????
I almost sent my phone across the world in order to use the warranty.
Now I'm back with my cellphone up , happy as hell!
Tnks a lot, and remenber to always clean everything before use more drastic measures.
BR
Click to expand...
Click to collapse
Wow.... really good news, i always clean contacts before everything, my old desire hd was going in car mode, just because a short in this piece, and when i cleaned with isopropyl alcohol it was magically solved.
Well, nice to know that your issue was solved...
Sent from my Nexus S using XDA App

[Q] Need expert help, is it bricked/savable??

I have a TF101 that will not charge or power on. I rooted it a month ago and it was running great. My wife lost the charger and had plugged in the tablet USB cable to a cell-phone charger , I found plugged into a week later to the phone charger, unplugged and attempted to turn that tablet on, it flickered on for a moment and then died (loading screen) :silly: ya stupid right?. I them found the right charger and plugged in the tablet and the light indicating that it is charging does not come on. I look and looked online for help. I'm pretty sure its not a charging problem as I did the freezer trip on the charger box nothing, I bought a new charging cable and charger off Amazon, nothing. Still not coming on when plugged in or anything (That is why I don't think its just a battery issue from what I have read.) The connection on the tablet looks ok on the bottom and both the old and new charger will power up and charge the keyboard dock just fine. Has the tablet been bricked dead?? Nothing I can do??
Thanks for your help and reply on this your all awesome
P.S I also tried a slow charge through the usb port on my computer over night and left the tablet plugged into both chargers over the course of two different nights. No luck.Also can't get into (Apx mode) the volume up and power held down for 15 sec does nothing.

Looks like you're stuck. You'll have to make a decision whether to buy a new battery or not. A colleague of mine solved a similar issue with a new battery off ebay, but it doesn't mean there isn't another hardware issue.
When you say the charging light does not come on, you mean on the dock right? The tablet itself doesn't have one. Did you try to just charge the tablet without the dock? Did you try to open the dock and flip the switch?

Lethe6 said:
Looks like you're stuck. You'll have to make a decision whether to buy a new battery or not. A colleague of mine solved a similar issue with a new battery off ebay, but it doesn't mean there isn't another hardware issue.
When you say the charging light does not come on, you mean on the dock right? The tablet itself doesn't have one. Did you try to just charge the tablet without the dock? Did you try to open the dock and flip the switch?
Click to expand...
Click to collapse
Yes the charging light on the dock does come on I thought I saw what looked like a light on the tablet. So the dock is charging and working just fine.
A battery like this? (I would put the URL but its not letting me since I'm new.
I'm not super good would opening stuff up how hard would the battery be to replace? I did see a thread on opening the unit itself looked complex. Also Any more trouble shooting I should do? I may just buy a replacement off ebay and sale my old one. Also can you tell me if its bricked or not or whatnot? I just don't want to put out fifty bucks for a battery and not have it work

Well if it won't turn on, it's difficult to troubleshoot further. The general rule is: As long as you can get it in APX mode, it's not bricked; with hardware issues as the only exception. In theory, it should power on with an empty battery (and start the charging process), but I have no idea about a dead battery or how the unit is made to handle such cases. Give it some time I'm sure someone else here can answer that question from experience.
Replacing the tablet battery is not too hard, but it's a long task that requires patience and some tools. There's some videos on youtube and others about how to open the unit safely without damage, and decent tools are cheap assuming you don't have precision tools. By opening it you can troubleshoot it a little more. Inspect the battery for physical damage, like being oversized, which means it's likely dead. If it looks in good shape, try disconnecting and reconnecting it to the board; sometimes reseating a connector solves the issues. Also look for any obvious damage inside while you're there. Even if you don't know much about electronics, an obvious burn mark on the board is never a good sign.
If after all that it still won't power on, then yes you could check out ebay. Just make sure lots of people have bought the same from this buyer (the more the better) and they gave positive reviews for the product (stuff like "still works after a year"). Make sure it specifies it supports the tf101 and it should be fine.
Honestly from what you described in the original thread, I wouldn't be surprised if over-amp or something like that damaged the battery. Hopefully it's only the battery but as I explained, it's rather hard to troubleshoot. From personal experience developing boards like that, there are usually protections in the device to prevent damage in case of over/reverse voltage/amp. Depending where the battery is connected in the circuit sometimes it's protected sometimes it's not. I have no idea how Asus do it so take it with a grain of salt.
Can you provide said phone-charger specs? Volts/amps/exact model?
Edit: P.S. The device or dock will not charge through USB. You need the actual wall charger.

Lethe6 said:
Well if it won't turn on, it's difficult to troubleshoot further. The general rule is: As long as you can get it in APX mode, it's not bricked; with hardware issues as the only exception. In theory, it should power on with an empty battery (and start the charging process), but I have no idea about a dead battery or how the unit is made to handle such cases. Give it some time I'm sure someone else here can answer that question from experience.
Replacing the tablet battery is not too hard, but it's a long task that requires patience and some tools. There's some videos on youtube and others about how to open the unit safely without damage, and decent tools are cheap assuming you don't have precision tools. By opening it you can troubleshoot it a little more. Inspect the battery for physical damage, like being oversized, which means it's likely dead. If it looks in good shape, try disconnecting and reconnecting it to the board; sometimes reseating a connector solves the issues. Also look for any obvious damage inside while you're there. Even if you don't know much about electronics, an obvious burn mark on the board is never a good sign.
If after all that it still won't power on, then yes you could check out ebay. Just make sure lots of people have bought the same from this buyer (the more the better) and they gave positive reviews for the product (stuff like "still works after a year"). Make sure it specifies it supports the tf101 and it should be fine.
Honestly from what you described in the original thread, I wouldn't be surprised if over-amp or something like that damaged the battery. Hopefully it's only the battery but as I explained, it's rather hard to troubleshoot. From personal experience developing boards like that, there are usually protections in the device to prevent damage in case of over/reverse voltage/amp. Depending where the battery is connected in the circuit sometimes it's protected sometimes it's not. I have no idea how Asus do it so take it with a grain of salt.
Can you provide said phone-charger specs? Volts/amps/exact model?
Edit: P.S. The device or dock will not charge through USB. You need the actual wall charger.
Click to expand...
Click to collapse
The phone charger that it was plugged into was a Galaxy S charger. 5v===0.7A. Doesn't seem high enough to have done anything...but I'm definitely no expert. (Literally)
Sounds like its a good idea to open it up then to check on the battery, if burned or oversized then I will buy a new one (As long as I don't see burnt marks) If the battery looks fine I'll try the reconnect. And cross hy fingers. Thanks for all your help so far. Any advice on where to buy the tools? Deal Extreme good for that Amazon?

No tools are required, ands its easy to get into just be carefull pulling the bezel off as the tabs that hold it on are quite weak (i broke a couple when i ripped mine apart in anger lol) after that their is about 10 normal screws until its open. It could be the case that the battery just needs to be unplugged and re-plugged in.
Its a strange problem you have there, the power output from that charger is less than half of what the standard asus charger outputs, if something is fried id call concidence as ive plugged my tf101 into various ac-usb adaptors with no troubles. Its a complete guess at this point but its almost like your tablet is suffering from the 0% issue thats common in the docks, where it refuses to charge if completely drained (afaik with the dock this is fixed by disconnecting and reconnecting the battery)
Also did you get an official asus charger as a replacement? a few of the cheaper ones dont even output enough voltage to fast charge the tf101.

[Q] LG G2 will not power on, seemingly no reason

Here is what happened exactly:
So the phone is sitting on my windowsill so i can get service and receive texts messages. i get a text so i walk over, pick up my phone, unlock it, and i pressed on the textbox to start typing my reply message. as soon as i press the text box my phone freezes, and thinking its no big deal i hold down the power button to turn off my phone (took about 10 seconds to power off). Now my G2 will not do anything at all, wont power on, wont charge, the red light doesn't even come on with the charger plugged in.
Things I've tried:
holding power/power+down/power+up for 2 minutes+
disconnecting the battery for 5 minutes and trying ^ again
disconnecting every component and reconnecting then trying ^^ again.
disconnecting battery, plugging in charger
disconnecting battery, plugging in charger, then reconnecting battery with charger still attached
charging with lg charger for 12 hours
additional details that may be useful:
at&t D800
rooted
cwm recovery
optimus g3 custom ROM
literally never have had an issue with this phone before
a new battery is on its way in case that is the issue

blacklight215 said:
additional details that may be useful:
a new battery is on its way in case that is the issue
Click to expand...
Click to collapse
Scratch that, i actually canceled the purchase of the new battery because i think i may need a new mobo instead. I'm not gonna buy anything until i get a second opinion at least.

sorry about the 3rd post in a row
I've ordered a new motherboard that has arrived today in the mail. after i get that in my old phone ill update the thread again.
I have to say though, i am extremely surprised and irritated by the absolute lack of support I've received from this site. i would always come here to find answers in other threads and the community seemed pretty awesome, so its pretty unfortunate that i haven't gotten even a single reply. i guess people only want to help others when they already no the answer...

blacklight215 said:
I've ordered a new motherboard that has arrived today in the mail. after i get that in my old phone ill update the thread again.
I have to say though, i am extremely surprised and irritated by the absolute lack of support I've received from this site. i would always come here to find answers in other threads and the community seemed pretty awesome, so its pretty unfortunate that i haven't gotten even a single reply. i guess people only want to help others when they already no the answer...
Click to expand...
Click to collapse
Have you found a solution to this? My phone did the exact same thing yours did last Friday. I tried several button combos and the only thing that gave me some hope was resetting (power + vol. down). I was able to get the LG splash, then the ATT splash and jingle with the LED lights changing colors, but that was it, went back to dead. I'm debating ordering a battery and some tools to try and get this working again.

thestrangebrew said:
Have you found a solution to this? My phone did the exact same thing yours did last Friday. I tried several button combos and the only thing that gave me some hope was resetting (power + vol. down). I was able to get the LG splash, then the ATT splash and jingle with the LED lights changing colors, but that was it, went back to dead. I'm debating ordering a battery and some tools to try and get this working again.
Click to expand...
Click to collapse
Yeah, so i got the mobo in my phone and it turned on and everything was working again! however the mobo i bought had a broken battery connection so i could only use it if it was on the charger so i had to send it back. but replacing my motherboard will fix my issue.
as for yours i have no idea, if it wont turn on even with the charger plugged in then replacing your mobo may be a solution.
i still think its pathetic that no one with real experience has replied to this thread, i guess you cant believe what your told about this place unless your question is easy to answer.

blacklight215 said:
Yeah, so i got the mobo in my phone and it turned on and everything was working again! however the mobo i bought had a broken battery connection so i could only use it if it was on the charger so i had to send it back. but replacing my motherboard will fix my issue.
as for yours i have no idea, if it wont turn on even with the charger plugged in then replacing your mobo may be a solution.
i still think its pathetic that no one with real experience has replied to this thread, i guess you cant believe what your told about this place unless your question is easy to answer.
Click to expand...
Click to collapse
Where and how much was your mobo? Did you have to solder anything?

thestrangebrew said:
Where and how much was your mobo? Did you have to solder anything?
Click to expand...
Click to collapse
i got it on eBay, the original price was like $120 but i put in an offer of $75 and they took it. when you buy it make sure you compare the pictures on the posting to your actual Mobo.
All that you will need for the switch is a credit card, a knife, an extremely tiny screw driver, and some double sided tape(the tape is optional).
as you can see in my picture, the board i bought is on the right and the old one is on the left. you have to watch for stuff like that when buying a part like this.
i think I'm about to buy a D800 G2 with a busted screen for $40 in the next hour, if i get it ill let you know how it goes.

Success!!!
Alright so yesterday i did buy that busted G2 and when i met up with the kid i made sure everything worked before i bought it. i got back to work and made the switch(i was going slow and i was debating on swapping the charging component, took about 35 minutes).
I did not wanna put my Sim in the phone until after i had downloaded all my apps and configured all of my settings the way i like them, so about 6 hours later i get a chance to make the final switch over. when i did put in my SIM everything APPEARED to work fine, but when i left my home i realized that my data was not sending or receiving anything at all? i went to the grocery store and bought a glasses repair kit for the screwdriver inside and opened the phone back up, everything appeared to be connected properly.
I left and called AT&T customer support and this guy helped me fix the issue, apparently their system though i was still using the temp iPhone 4 i had. after he switched the old IMEI number to my new Mobo's IMEI, i restarted my phone and it worked perfectly! i highly recommend taking this route if you can get a new board for less than a new G2 costs.
The Mobo i got off the kid is legit too, i guess he bought it only a month or two ago because it has some features i did not have like the knock code. i also got it rooted and flashed TWRP, not sure if ill flash a G3 ROM or leave it like it is.

Before I waste any money - What do y'all think? Battery, or worse?.. YiKES !!

So, yesterday, I'm just lounging on the couch, readin' on my OG Nexus 5 (from 2013, mind you). &, BAM !! Just turns off (with about 40% battery). So, I'm thinkin', "Ok. I'll just force a reboot..." NOTHING !! So, I plug it in... NOTHING !! I'm talkin' NO LEDs, no charging indicator, no NOTHIN' !! Can't access recovery or bootloader. I believe it to be a hardware issue, whether battery or some board, idk. So, what do you all think? Replace the battery? And, If it is dead, I'm out of luck !! Because, I have a good amount of research that I hadn't backed up yet. Btw, I'm no slouch, so I've tried every button combo, etc. Neither, do I believe it to be an internal power button issue.
Running rooted stock 6.0.1 MMB29K, stock recovery, franco.Kernel r79, SuperSU 2.66-BETA
Thanks !!
Mod Edit: please don't bypass swear filters

I suggest charging the phone using the original cable and charger that came with the phone. Leave it on the charger for about an hour to see what happens.
Yes, it could be the battery but it could also be something else. I assume you don't have another Nexus 5 to test it with.

Try to disconnect and reconnect the battery's wire. I had a similar problem and it was solved by doing so .

audit13 said:
I suggest charging the phone using the original cable and charger... for about an hour...
I assume you don't have another Nexus 5 to test it with.
Click to expand...
Click to collapse
I've tried this, and unresponsive. And, you have assumed correctly. lol Also, I've only used the OEM cable & charger (aside from the occasional alternatives out & about i.e. friend's charger, g/f's, etc.).

shellsuper said:
...disconnect and reconnect the battery's wire.
Click to expand...
Click to collapse
By this, do you mean the long L-shaped one? Or, the smaller connection at the top of the battery? Because, I had disconnected & reconnected the ribbon, but never removed the battery, as I lack that li'l blue tool in the iFixit video.

Well, the battery will be the cheapest unless you can quickly score a used N5 with a damaged screen and working internals.

kain144000 said:
By this, do you mean the long L-shaped one? Or, the smaller connection at the top of the battery? Because, I had disconnected & reconnected the ribbon, but never removed the battery, as I lack that li'l blue tool in the iFixit video.
Click to expand...
Click to collapse
The small connector not the long L shaped. I think the L shaped is for the speaker and some other components in the bottom of the phone and not related to the battery.

You don't need the blue tool to remove the battery. Just heat the battery with a hair dryer to soften the adhesive. Then, take a a flat blade and gently slide it between the battery and frame. Slide and gently pry the battery away from the frame. I have done this several times on N5s and never had a problem.

shellsuper said:
The small connector not the long L shaped.
Click to expand...
Click to collapse
Ohhhh. Okay
audit13 said:
You don't need the blue tool to remove the battery...
Click to expand...
Click to collapse
Thanks, everyone. I'll give it a shot in few, & report back...

Ok. So, I had gone ahead and disconnected & reconnected the battery connector to no avail. :\ (Why do bad things happen to kinda sorta, in a way relatively good people like myself?.. smh) Any other advice?..

So, I'd decided to stop being a cheap BASTARD and ordered a "Genuine OEM Google Nexus 5 LG D820 D821 2300mAh Battery BL-T9 3.8V 8.74Wh" on amazon, sold by YDT Parts for $6.49 (Free Shipping from California) if anyone else is interested. I'll post results after installation, just-in-case anyway else finds themselves in my predicament...

That price is really good for a genuine oem battery compared to prices from etradesupply.

audit13 said:
That price is really good for a genuine oem battery...
Click to expand...
Click to collapse
I KNOW, RIGHT !? Hopefully, all that I have is a dead battery. Guess I'll see soon enough. Now, if only there were a way to get a fingerprint reader on this device, I wouldn't update till the N5's no longer updated. (What's the official term for that, anyway? Not EoL, is it?..)

Let's hope it is genuine. I bought one from Aliexpress that looked just like an original but people said it is not an original because the temperature would not go above 29c. I don't know if it is original but it's works fine.

Well, got the battery and NOTHiNG !! So, idk, maybe my N5's just dead. But, the supplier might as well have been from China - Typos, terrible English, the whole 9... Also, my OEM battery's by Sony, but this one says Samsung, so who knows?.. :: shrugs:: I don't trust these companies anymore. Thanks for y'all's input, though.

So not LEDs, no vibration, nothing?
If you have access to a Windows computer, connect the phone to the computer. Does anything appear in device manager?

audit13 said:
So not LEDs, no vibration, nothing?.. Does anything appear in device manager?
Click to expand...
Click to collapse
Nope. NOTHiNG !! Its fine, though. My g/f'd given me her VZW HTC One (M7). So, that'll haveta do till I get my next Nexus (which'll be either a 5X or Google's 2016 offering, if I like the direction the rumors go in...). So, now... OFF to the M7 boards !! Godspeed, everyone ! Godspeed. lol

S7 - Wont start after battery&camera replacement.

Hi, my situation is; got a galaxy s7, the rear camera was bad, bought a new original one, stripped the phone down, fitted the camera, followed the tutorial (ifixit), put a new battery in at the same time, now rebuilt it all, (without the rear case on so can still easily take it apart again) and it wont turn on, wont go into safe mode, recovery mode, soft reset etc, tried every method, also via usb to my laptop, however it does charge, it comes up on the screen with the green battery icon and the LED light illuminates as if it is charging. Therefore, the screen is not damaged. And as far as i can see, all the connections are back joined onto the motherboard, it just wont boot up.
Also, if this makes any difference, I am running the Superman rom.
Any help would be massively appreciated as I have scowered so many websites searching for someone with a similar issue with a solution and I'm struggling, massively!

Are you sure you have connected the battery as required and no other circuit was touched?
Also, do you have the certainty this "new" battery works? I suggest you do the next 2 things:
1. Take this battery out and connect your old one. this way you can check if the new battery is faulty.
2. If doesn't work, even after inserting again the old battery, take your phone to a local repair center. (probably you messed something up).

marcusn said:
Hi, my situation is; got a galaxy s7, the rear camera was bad, bought a new original one, stripped the phone down, fitted the camera, followed the tutorial (ifixit), put a new battery in at the same time, now rebuilt it all, (without the rear case on so can still easily take it apart again) and it wont turn on, wont go into safe mode, recovery mode, soft reset etc, tried every method, also via usb to my laptop, however it does charge, it comes up on the screen with the green battery icon and the LED light illuminates as if it is charging. Therefore, the screen is not damaged. And as far as i can see, all the connections are back joined onto the motherboard, it just wont boot up.
Also, if this makes any difference, I am running the Superman rom.
Any help would be massively appreciated as I have scowered so many websites searching for someone with a similar issue with a solution and I'm struggling, massively!
Click to expand...
Click to collapse
I'd start by reversing everything you did until it powers on again, if it still doesn't power on with the old camera module & old battery in then start looking at other things, i'd probably start with the battery though as it is a power issue

The new battery charges and it comes up on my screen showing the green battery image charging so it is being recognised. Tried the old battery and its the same situation. I genuinely believe I didnt accidently short anything and im confident everythinf is where it needs to be. Ive just booked in to go to the samsung shop this weekend so hopefully they manage to find skmething althpugh probably end up costing a daft amount. Thanks for the replies so far

marcusn said:
The new battery charges and it comes up on my screen showing the green battery image charging so it is being recognised. Tried the old battery and its the same situation. I genuinely believe I didnt accidently short anything and im confident everythinf is where it needs to be. Ive just booked in to go to the samsung shop this weekend so hopefully they manage to find skmething althpugh probably end up costing a daft amount. Thanks for the replies so far
Click to expand...
Click to collapse
New camera module? Did you remove it to see if it is causing the problem?
I know there are different sensors, and if the wrong one is replaced the camera won't work, not heard about it stopping the phone booting but you never know

Just taken it to the local phone repair shop, lets hope they can find something with it. Keep you updated. Thanks so far.