Does anybody out there know what may be wrong with my wee Wallaby? The battery fuse is gone, so i've jumpered it out but despite the battery voltage being 3.5v the unit wont start at all. It doesn't respond to any reset and I cant get it to enter bootloader mode. Any info would be appreciated, i'm an electronic engineer and noticed there are quite a lot components involved in the battery circuit.
Thanks.
Buy a replacement on ebay for 10 us . LOL Upgrade your wallaby its olddddddddddd
Yeah, i've ordered one already! I was unsure though if this was going to be a waste of cash. A whole £13! I'll let you know how it works out. Thanks for the reply.
I think you have probably fried the logic on the battery. As for upgrading, I think the Wallaby is the best value pda/phone available anywhere.
Hi there,
Got my new battery and low and behold it has brought my Wee Wallby back from the grave! The battery IC's must have been faulty, there's five pins on the circuit board for the motherboard to connect to so I reckon the battery logic is quite sophisticated.
Thanks for the help guys, I tried O2 in Glasgow but they didn't want to help at all unless the XDA was a warranty job.
I've also upgraded my ROM to the one and only XDA Developers special and I have to say it's a real improvement all round.
Goodnight gadget lovers!
Related
Just performed a battery test in the xda system diagnostics. It shows that my xda is getting no charge!
Checked the supply for output and that is ok :shock:
Anyone else who has got charging/battery problems give this test a try.
Just go into wallaby boot loader (press soft reset and power button at the same time). When it loads press the action button and diagnostics will be loaded. Navigate down to "battery" and press the action button again.
There are several codes displayed but i dont know what they mean. On the "charge" section it displays "ERROR !!"
Does anyone know what is causing this to happan and how i might fix it?
Got to a stage where i have tried everything to fix the damn peice of crap and will throw it up the wall soon
Anyones help would be greatly appreciated. Thanks.
I have looked at that, when plugged in to charger it says Main voltage0x0261 Ext voltage 0x0000, Chg voltage 0x0000. Vos FFFF, Rob 0270, mine is chargin ok though. Have you tried another battery? I am selling a battery from an xda I am breaking, dont throw it up the wall it wont do it any good at all. I did see a few things about this on this site, and also diagrams that fixed the problem if indeed it is a broken circuit.
Thanks for that info and checking yours out. I havent tried a new battery yet cos i am conviced that its something else.
A few people i have spoken to have the same problem and they have put new 1800mA batteries in. Still the fault remains. I have also seen on this site someone who has bridged a wire over one of the fuses. I didn't really want to resort to this yet!
I have literally spent hours on this site for a fix for this problem but found nothing that has worked for me so far.
Do you know of anymore links that i haven't mentioned?
Here's what my xda lists on the diagnostic:
CHARGE STATUS:
ERROR!!
Main Voltage:
0x01F0
Ext. Voltage:
0x0000
Chg. Voltage:
0x0000
VOS: FFFF
ROB:0000
Thanks for your help cruisin-thru!
I know this is obvious but I take it you have checked it out using another cradle/charger/usb sync/charger.
Yep. Got a friend of a friend to lend me his cradle. No good though!
This might help...
There's a guy here that fixed his non-charging XDA by wiring across a small fuse.
http://forum.xda-developers.com/viewtopic.php?t=4811
I saw that one thanks pete. I haven't had the bottle to do that yet though!
I was thinking maybe as a last resort! What do you think?Do you think that it might damage my xda even more?
The bloke who fixed his said it works ok. Fair play to him in having the guts to do that. Have you seen how close all the components are together?
:shock:
Oh well if all else fails!
You really need a thermostat controlled tiny tipped soldering iron for that job, dont risk it if you dont feel capable, however if you did the job of taking it apart, locating the point that needs bridging etc, I am sure a local small tv repair shop owner could do it in 5 minutes, offer him a few quid for doing it while you wait.
markjames1981 said:
I was thinking maybe as a last resort! What do you think?Do you think that it might damage my xda even more?
Click to expand...
Click to collapse
I think holding a multimeter over the part to see if it conducts is unlikely to do much harm. If it conducts, no need to solder. If it doesn't, nothing else will help.
Hello
in the last few weeks i got some emails of ppl who had problems charging
their XDA's. So i decided to redo my Mod and make a few new pics.
First of all it seems like XDA Charger can't filter fluctuations in the powerline hence the fuse that is supposed to make sure your XDA wont be fried blows and you cant charge it anymore.
The fuse itself seems to be a 1.5 AMP fuse, unfortunatly i wasnt able to get one of these babies in...i could have used the 3.0 AMPs but i thought it
might be smarter to stick with the specs.
So where to get it from? Fortunatly i discovered that the same fuse is
built into the XDA twice. The second one is responsible for the extended battery pack, which i dont use. Perfect for my mod
Please DO NOT do this if you dont know anything about soldering.
I was just lucky Just call and expert...most will do it for free or charge a small fee.
@Peter Poelman : i hope you like this one better
Okay...lets start with the pics...
its upside down...lol
lucky the ones who preview
sorry for that
Before i forget...after this mod you should not use an extended battery pack anymore....i bought a 1800mAh battery from expansys.
which lasts me for 7 hours hard PDA gaming fun...
Aquasesh,
Your post will quite probably save my day as I have pluged the wrong cable in my XDA.
But I'm quite unclear on the exact order of your picture. I've seen it's been posted in reverse but I'm still confuse.
Could anyone put numbers instead of my X so that I can next search a techni guys to have him do it for me.
. X X
. X X
. X X
. X
Tanguy
Ignore the bottom picture, then read right,left, right, left, right, left.
Where's the blown fuse?
I know it's been a while since you must have done this but how do I get the top cover off. I unscrewed the one black screw I could find and managed to get the 4-way cursor button out but I don't see how to get access to the front to do the soldering.
Thanks,
Daniel
help
bro i just ask if it aplicable to my xda1, it stil charge but its stop 25% charge. do u have any diagram pcb of xda i got celphone tech. w me problem w dont know the manual and diagram pcb board. help
[email protected] is my email any info be big help. tnx
after solder the wallaby fuse...don´t work
hi
I have solder the fuse one month ago...and works fine...now after charge in my car the wallaby stay´s off...try to solder the fuses again...but nothing.
Is my wallaby dead?
to all
better replace fuse with same value,not bigger or with wires,and check your charger,maybe voltage is too high.otherwise you'll damage your device.abnormal voltage input may fry your xda.
hi
one month ago i have solder and dont put a fuse...whne i charge in the car the led turn off and never wake up again...so may be my wallaby is dead now?
there is any thing i can do to put my wallaby work?
or i have to buy another PDA?
please help me...what can i do?
i again...nobody help me?
can i do something to solve this problem?
don't know what to say,remove battery,let him without battery some time few hours or more,search for another charged battery and try again,maybe only charging part are damaged.
i don´t have another battery...is built in...i gone try discard from wallaby few hours...
another adivece?
manythanks
Hi
I removed the battery a lot of hours...and nothing
anotther sugestion please?
Long sad sad story short:
Bricked my Flyer to the point where it didn't boot up, had wrong radio roms and in the end, the battery died.. now it just blinks orange..
HTC Repairs said that the motherboard needs to be replaced, which I find very hard to believe, since it worked just "FINE" before the battery died
In my search for a Battery for the device I only came by chinese bulk sale pages, 100pcs minimum order.
Would be very grateful if anyone can point me to a page or person who can spare a full Flyer/Evo battery, or better yet, who knows how to manually charge the battery, if possible, using a power generator..
(And yes, I did a search on the forums but no clear lines of help in my question)
Try these guys...
http://www.parts4repair.com/htc-flyer-battery/
ant these...
http://www.dealrepairs.com/htc-flyer-battery_p82.html
spdie said:
Try these guys...
http://www.parts4repair.com/htc-flyer-battery/
ant these...
http://www.dealrepairs.com/htc-flyer-battery_p82.html
Click to expand...
Click to collapse
Thanks, ordered a new battery for 29$, will see if it works
is it orginal battery?
when you get the battery can you inform us about the new battery's performance?
there is a a post on how to manually recharge battery; search a bit XDA; Globathron posted solution for a guy with same problem.
EDIT:
http://forum.xda-developers.com/showthread.php?t=1422687
hope thats what u need/mean
Fellow windows users,
Im having a little bit trouble to fix my nokia lumia 920 white cover.
The phone broke down after a heavy storm at tomorrowland where the phone was touched by humidity.
Nokia care doesn't want to repair my phone because the water marker went of.
Before I handed my phone over to nokia, the only problem was that I couldn't make connection to my carrier.
(Proximus Belgium)
Sometimes I recieved a call but most of the times I had no connection.
After the 'repair' department sent my phone back without fixing it through the presence of water. (Couldn't be much because I only saw a little bit of corrosion on the sim tray. I removed that connection and tested the conductivity with my voltage meter.)
Now I have it back and it doesn't boot anymore.
I've successfully flashed the device with a new firmware from nokia. (It's the proximus red version)
But still I get the charging icon blinking when I try to power it up. The battery should be fully charged in the 12 hours it was connected with the original charger.
I've checked the battery and there is no damage or sign of water damage. The amp meter indicates that the battery is still functioning.
Is there a way to be check what the problem is? Because a blinking battery Icon doesn't explain much.
Maybe use a stronger adapter to "Boost charge with High amps' to rekick some life in the battery?
This nokia lumia cost me 430 euro's and only worked for 2 months so I'm really unhappy with nokia Care.
With friendly regards
Me
Kickstart
To help myself.
What would be the strongest charger that I could plug my cellphone in?
The battery has been dead for 4 weeks due to nokia.
So maybe a High amp kickstart should refill the battery to a level the wall socket could do the rest.
T3ckN1k said:
To help myself.
What would be the strongest charger that I could plug my cellphone in?
The battery has been dead for 4 weeks due to nokia.
So maybe a High amp kickstart should refill the battery to a level the wall socket could do the rest.
Click to expand...
Click to collapse
I think the only way to boost it is to disassemble from the phone and try to charge the battery directly, but all this requires technical & basic electronics skills.
I have similar water damaged 920, after full charge of the battery out side the phone.The phone drained completely even before got to windows phone slogan...this was because of electrical shortcuts in the main board due water corrosion
I think it best to sell the phone if you don't want to deal with ordering spare parts over ebay in order to repair it.
In most cases water damage cannot be repaired. You have to understand it gets in an under everything in the phone. The phone will always get cascading problems as time goes by. It may work for a while but will and I do mean will fail later.
boril said:
I think the only way to boost it is to disassemble from the phone and try to charge the battery directly, but all this requires technical & basic electronics skills.
I have similar water damaged 920, after full charge of the battery out side the phone.The phone drained completely even before got to windows phone slogan...this was because of electrical shortcuts in the main board due water corrosion
I think it best to sell the phone if you don't want to deal with ordering spare parts over ebay in order to repair it.
Click to expand...
Click to collapse
I have basic elektronical skills so it wouldn't be that hard.
Now I'm letting the battery charge for 48hours sometimes that helps.
I'll post my findings within 2 days if I can kickstart this thing.
T3ckN1k said:
I have basic elektronical skills so it wouldn't be that hard.
Now I'm letting the battery charge for 48hours sometimes that helps.
I'll post my findings within 2 days if I can kickstart this thing.
Click to expand...
Click to collapse
If you need help don't hesitate to contact me via PM.
Also get Nokia Lumia 920 RM-820_821 L1L2 Service Manual v1.0.pdf will help you a lot or watch videos on youtube how to dissemble your Nokia.
HI All,
I wasn't even sure I was going to post this or not but I thought it might help someone out. This is not meant to be a "how to" post and you should proceed at your own risk.
A friend of mine had a 16gb Touchpad that he hadn't used in several years. It was just sitting in a box for several years. When I told him I was still using mine to watch videos and such he decided to dig his out. Unfortunately it wasn't in very good shape. The battery had swollen and had practically pop the screen out of the case. I'm fairly handy at fixing things so I told him I would give it a shot to replace the battery.
I wasn't very hard to open the case because the swollen battery had pushed the screen up and gave me easy access to the clips that hold the screen in. By gently prying up under the screen to released the remaining clips the screen came away from the other half. There are 2 cables attaching the screen to the MB so be careful. I wish I would have taken more pics but I didn't think about posting a how to. There are a couple of good how to's online and batteries are available online for around $30.
https://www.ifixit.com/Guide/HP+TouchPad+Battery+Replacement/6082
https://www.youtube.com/watch?v=zD2zGOsh6I8
Once I separated the screen from the body I had to pry the battery out. It is stuck down with some pretty sticky tape on the underside of the battery. You have to pry up pretty hard but you also have to be gentle as not to damage the copper foil that is under the battery. Once the battery is free you can give it a little pull to disconnect the cable from the motherboard. The online how to has you disconnecting all the little cables from the MB and actually removing the whole MB from the case. This is not necessary. The only thing that needs to be removed is the usb module and one or two screws from the MB near the battery connector. With a little patients, good light you should be able to mate the new battery plug to the connector. Just make sure you line the two connectors up and use a small tool to push the plug all the way onto the connector. Now once the battery is installed just replaced the parts in reverse order and you should be good to go.
Hope this helps someone,
Cheers
Thanks! My battery is equally swollen but working just fine, so I'm not sure if I need to do this before it fails. I hope it doesn't explode further or cause a fire!
It's curious, I was going to open a new thread right about that and I've found yours!
I extracted the old swallen battery from my touchpad many months ago but I still have to buy a new battery.
I believe that the batteries sold online were producted many years ago and, considering the value of the touchpad on the used market, 30 dollars are not little in my opinion.
Does anybody by chance know of any cheaper alternative battery that could be adapted to the touchpad?
sirtom1 said:
Thanks! My battery is equally swollen but working just fine, so I'm not sure if I need to do this before it fails. I hope it doesn't explode further or cause a fire!
Click to expand...
Click to collapse
They are lithium. If the pack is swollen it has gone bad.
Replace as soon as possible. The risks with lithium are too high.
Hi all,
It's over 4 years since the last posting in this thread, but thought I'd check in anyway.
The battery in my Touchpad does not appear to be swollen (no obvious bulging in the case. However, it seems the battery is not retaining a charge as long as it used to so I'm wondering if anyone has a legit source for a replacement. My backup plan is to take the TP apart and see if I can provide an access point for an external source (battery or P/S) and would be interested f anyone has done this, as well.
The TP is certainly not as fast or have as much memory capacity as current tablets, but its display is beautiful and the price was certainly right (firesale
Thanks in advance for any help.....cheers (and happy upcoming holidays!
stephr1 said:
Hi all,
It's over 4 years since the last posting in this thread, but thought I'd check in anyway.
The battery in my Touchpad does not appear to be swollen (no obvious bulging in the case. However, it seems the battery is not retaining a charge as long as it used to so I'm wondering if anyone has a legit source for a replacement. My backup plan is to take the TP apart and see if I can provide an access point for an external source (battery or P/S) and would be interested f anyone has done this, as well.
The TP is certainly not as fast or have as much memory capacity as current tablets, but its display is beautiful and the price was certainly right (firesale
Thanks in advance for any help.....cheers (and happy upcoming holidays!
Click to expand...
Click to collapse
You can look for all about the battery on this thread:
https://forum.xda-developers.com/t/hp-touchpad-poweroff-prevents-battery-drain.4002265/
If the Tablet boots, then just keep it charging.
This thread provides some information on how to wake up the battery:
https://forum.xda-developers.com/t/the-definitive-answer-on-charging-a-hp-touchpad.3632550/page-5
Good luck and happy holidays!
HP_TOUCHPAD said:
You can look for all about the battery on this thread:
https://forum.xda-developers.com/t/hp-touchpad-poweroff-prevents-battery-drain.4002265/
If the Tablet boots, then just keep it charging.
This thread provides some information on how to wake up the battery:
https://forum.xda-developers.com/t/the-definitive-answer-on-charging-a-hp-touchpad.3632550/page-5
Good luck and happy holidays!
Click to expand...
Click to collapse
Appreciate the links. They were helpful. However, it did not answer my specific question: Replacement battery and a reliable source for it. I will try some of the suggestions to see if I can "rebuild" the battery charging capacity, but at 11 years old, there will be limits to doing this.
Cheers and happy holidays back to you....
stephr1 said:
Appreciate the links. They were helpful. However, it did not answer my specific question: Replacement battery and a reliable source for it. I will try some of the suggestions to see if I can "rebuild" the battery charging capacity, but at 11 years old, there will be limits to doing this.
Cheers and happy holidays back to you....
Click to expand...
Click to collapse
New batteries are available from eBay:
https://www.ebay.com/sch/i.html?_fr...t=0&_sop=15&LH_PrefLoc=2&_stpos=10001&_fcid=1
Used or brand-new Hp Tablets are available from eBay:
https://www.ebay.com/sch/i.html?_fr...et&_sacat=0&LH_PrefLoc=2&_stpos=10001&_fcid=1