[HARDWARE FIX] Xperia Z not charging or booting

[quickstyler]

Problem: Xperia Z is not charging, not turning on, false battery stats or stuck in an non-software-caused bootloop... sometimes It's caused by a broken battery connector on the mainboard

try swapping battery first!

Ok guys... I present you...

XPERIA Z BATTERY BUG ***HARDWARE FIX***

It's a cheap n' dirty fix! Use at your own risk - I don't care if your house burned down because of this... :silly:

STEP 1 - Remove the Backcover (see this youtube video how to do it - http://www.youtube.com/watch?v=jNrtamZuf7E)
STEP 2 - Remove the Battery (Be very carefull not to crack your display doing this...)
STEP 3 - Bend Battery Connector Pins

STEP 4 - Get a very thin cable (eg. from a USB Cable you cut down) and a soldering iron
STEP 5 - Solder the cable to the battery pinpoint >> TH << and on to the testing pinpoint on the mainboard according to my images

Should look like this...

STEP 6 - Assemble everything together again and connect the phone to the original Sony Charger
STEP 7 - Wait 2-3h for the handset to be charged
STEP 8 *additional* - Boot up device and install Sony Mobile Battery Test from here: http://forum.xda-developers.com/xperia-z/general/sony-mobile-battery-testing-app-version-t2527932 <--- (You can just take the .apk from the .rar file and install it)

STEP 9
SUCCESS! If your screen looks like this everything went fine:

Image of finished repair...I put some red plasti-dip around the fix-cable to isolate it

---
Notes:

Battery stats should be now OK - If not solder battery pinpoint EN to the PCB pinpoint behind (not under)

So what was the problem?

Sony's battery connector on the PCB is a cheap plastic sh*t... there are 6 connection points... 2 for +, 2 for -, 1 for temperature (TN - located middle top) and one EN ??? after some time the TN signal does not connect correctly causing this problem. you can't charge the battery and/or get false battery stats...if the battery is empty you can't boot anymore even with ac charger connected...

On my screenshot on top you see the battery temperature is 34° and green - OK - everything working fine

But without the fix you'lI get this:

Complete bull****...minus -30°...I'm not even close to Sibiria

So one step was to get rid of this fault... Since I got sometimes the right values (about + 30°C) when I was holding the connection between battery and pcb together with my fingers while device was on, I thought it is a problem with the connection.

The main problem on my two devices was that they didn't charge... When connected to AC -> bootloop ...

I got a fully charged battery and found this problem with the battery test app.. Fixing the battery connection to transmit correct temperature data made it possible to charge the battery fully again...battery stats are working and correct...I can now charge the devices as normal (in turned on or off state) ... i did buy new batterys but used the old ones for the fix and they work perfectly

TESTED ON TWO DEVICES WITH BOOTLOOP / NOT CHARGING and they are working FULLY again!!!!

Note if you open your device it may not be water resistant anymore...you can buy a new seal on ebay

If it worked for you please say thanks/like

thx 2 hunix for his software fix thread

 

[ABCdude]

Thanks for the thread, quickstyler, I had lost all hope before checking this and hunix's thread. I am yet to try the hardware fix as I wanted to first check if I have the same issue using the battery tester. I ran into some problem with the software fix, please check my post in the other thread and reply if you can help with anything.

 

[emiglet]

This guy explains the whole battery temperature thing.

http://www.youtube.com/watch?v=A6mKd5_-abk#t=451

 

[cheychao]

my xperia Z battery didn't charge and run dry then I'm change to new battery with have 60% connect pc andd repair.
But my battery still didn't charged i'm try Sony Mobile Battery Test and it say "Charge System Fail"
so i'm change to my old battery and follow your instuction but it doesn't seem work.
btw i'm try to google "xperia Charge System Fail" but not find any solution.

 

[jai554]

My problem is that my phone charges very slow and discharges very fast!
When i turn off the phone, it stays hot/warm

 

[androidfreak70]

####off topiC!

From where i get SONY MOBILE BATTERY TEST aPp?¿

 

[KyoForever]

Hi, great info!!

I have a Z1 with the same battery-not-charging issue, any hints about the testpoint on that model?

 

[jai554]

My phone only work when plugged in... Blackout when unplugged... Will this fix work?

 

[gbkuvad2000]

Same problem My phone only work when plugged in... Blackout when unplugged... Will this fix work?

 

[valpraiso]

I have a problem regarding my power system, I don't know what it is but my phone only works when I plug it into my laptop, it doesnt work on wall chargers and I did try few wall chargers. I have replaced the battery but result is still the same.

I tried your method but now my XZ doesn't wanna start at all, even on laptop, which was the only way to operate it.

After soldering those two points, my XZ only flashed a white screen for a second and then dies, when I tried to turn it on, it shows SONY for a second and then it dies again ...

Flashtool still can recognize it tho .... and I did flashed its original firmware, but then again, it still does not want to start ..

Any idea what happen?

 

[abumaha]

man i just want change lcd then didint boot anymore even tried several display
no only red light or blue light

 

[Phantom281]

I have a problem regarding my power system, I don't know what it is but my phone only works when I plug it into my laptop, it doesnt work on wall chargers and I did try few wall chargers. I have replaced the battery but result is still the same.

I tried your method but now my XZ doesn't wanna start at all, even on laptop, which was the only way to operate it.

After soldering those two points, my XZ only flashed a white screen for a second and then dies, when I tried to turn it on, it shows SONY for a second and then it dies again ...

Flashtool still can recognize it tho .... and I did flashed its original firmware, but then again, it still does not want to start ..

Any idea what happen?

Same problem like your's . If you find any solution pls reply me too



---------- Post added at 07:49 AM ---------- Previous post was at 07:42 AM ----------

Hi quickstyler!!
Same problem like your's . I can boot while connecting device onto the laptop. But as soon as i remove usb from my laptop it shut's down.
The sony mobile battery test shows exactly same as error as you's ... -30 c , I soldered th to the pinpoint as you pointed but it didn't solve my problem. Please provide us the way. A lot of user is having this problem..

 

[hmi_V]

Bricked xperia z

hi guys , i have a problem with my sony z ,
when I pressing power ,i got the vibrate ,but there is no sony logo , even when i reflashed the ftf file ,still no chance,
thanks

 

[Ticklefish]

My Z has started to do this. It won't charge at all and is showing completely the wrong temperature for the battery. So it looks like I need to do what's in the OP.

Quick question though...how did you put the phone back together again? What did you stick the back on with?

 

[Pauliix]

My Z has started to do this. It won't charge at all and is showing completely the wrong temperature for the battery. So it looks like I need to do what's in the OP.

Quick question though...how did you put the phone back together again? What did you stick the back on with?

Broda Please keep us updating. I'm in same situation ( Wrong temperature ) for almost 2 months

 

[Ticklefish]

Broda Please keep us updating. I'm in same situation ( Wrong temperature ) for almost 2 months

I'm going to use an old handset for a bit, while someone who's better at soldering than me tries the method in the OP. If I'm lucky, I'll get my phone back. If not, I guess I'll be using ICS for ages!

 

[kingvortex]

I'm going to use an old handset for a bit, while someone who's better at soldering than me tries the method in the OP. If I'm lucky, I'll get my phone back. If not, I guess I'll be using ICS for ages!

Don't forget that the sale of goods act covers us in the UK. Your phone might still be eligible for free repair.

Look into it before dismantling it and definitely voiding your warranty.

Edit - Here's an (oldish) article about your rights in the UK. Also, if you unlocked your bootloader your warranty IS NOT voided.

Sent from my C6603

 

[Ticklefish]

Don't forget that the sale of goods act covers us in the UK. Your phone might still be eligible for free repair.

Look into it before dismantling it and definitely voiding your warranty.

Edit - Here's an (oldish) article about your rights in the UK. Also, if you unlocked your bootloader your warranty IS NOT voided.

Sent from my C6603

Ah, a fellow countryman. Excellent!

I could always try unrooting my phone as that definitely does kill my warranty. To be honest, I was thinking about taking it down to my local Carphone Warehouse. They offer a repair service and I've always found them to be helpful.

The stores near here are staffed with nerds which is just perfect for an old modder like me..

 

[kingvortex]

Ah, a fellow countryman. Excellent!

I could always try unrooting my phone as that definitely does kill my warranty. To be honest, I was thinking about taking it down to my local Carphone Warehouse. They offer a repair service and I've always found them to be helpful.

The stores near here are staffed with nerds which is just perfect for an old modder like me..

It being rooted will cause them to try to tell you it voids your warranty, but flashing, rooting and bootloader unlocking etc does not void warranty for hardware defects in all EU member states and that includes us here in the UK. Here's some information on that.

If I were you I would flash back to stock and quote the sale of goods act at the retailer. They are bound by law to repair or replace at no cost to you.

Sent from my C6603

 

[Ticklefish]

It being rooted will cause them to try to tell you it voids your warranty, but flashing, rooting and bootloader unlocking etc does not void warranty for hardware defects in all EU member states and that includes us here in the UK.

If I were you I would flash back to stock and quote the sale of goods act at the retailer. They are bound by law to repair or replace at no cost to you.

Sent from my C6603

Excuse me while I suppress a shudder at having a...a...stock phone..

That's not a bad idea. I'll download Emma, go back to you-know-what, and try taking it in tomorrow. Watch this space!

I was curious about using the Sale Of Goods Act. It's clearly not fit for purpose if it won't last the full length of the contract. It certainly wouldn't be the first Sony phone I've had that went wrong after a year.

And yet, I'll still get a Z4 when it comes out. I think I may be a fanboy...