Warning! Your Xda II can be hard reset after change battery
I experience hard reset after change battery twice, and also our member of www.pdamobiz.com were complain about Xda II can be hard reset so easy. Even change battery in 1-2 mins. So upset!
Fininally I can find the root cause, that's battery cover in the back.
So, today I take the photos to show that is the real cause. Anyone would like to try, don't forget to backup.
......
Any time that you want to change battery, of course you have to open the battery cover in the back. Then after take out the battery, just put the cover on the back. See picture:
Aha! do you know, the cover is metal, and electricity can passthrough it as same as electric wire. Battery backup of Xda II is also only like Big Capacitor, it's pole are still connect to the contacts.
If unfortunatly, the cover move down forward to the contact as picture.
See at Red Circle. Battery backup will discharge through the metal cover immediately. You just know nothing but after insert new battery you will find new screnn as:
Hard Reset!
So, if you don't want to be as this, do not put the cover or anything that conduct electricity over the back of XdaII while no batterty.
So this is only likely to happen if you short out the contacts 'cause you don't put a battery in when you close the lid!
To be honest that's not something I'd do anyway. Interesting, but not really suprising that this could happen. I guess that you, in effect, short out the internal battery.
like the rest of the xda casing the backpanel is not metal but
painted plastic
and even if it were metal then it would be alu which is a pretty lausy conductor
I didn't believe it but he is correct - I just tried it out myself!
The paint used on the plastic does actually conduct electricity (I know it's a different device but hold an XDAI while charging and then lightly touch a second charging unit and you'll get a slight shock!!)
Still it's probably not a problem for most people because most people only remove the battery to change the SIM card or replace the battery and as such wouldn't ever touch the connectors with the case!
It is not painting, it is a metallic film, it is possibly chromium.
hi all ,
the reason why your XDA is loosing all data when you put the battery cover back without the battery is because the cover pushes the red switch !!!
this is the backup battery switch so you are pushing it to off position ! so there will be no power to support the ROM .
XDA is designed in way that when you want to remove your battery you have to unlock the red switch which is the backup battery switch so you will turn it on to support the ROM.
when you take your battery you are not supposed to turn the switch off before you put the main battery back,so when you are placing the back cover there is no way to fit it in place if the switch in the on position so it is pushing on it back to the off position leaving the ROM without power.
Regards.
Hard reset when changing battery... there is more to it
Hi all!
I have read with a lot of interest all the couses you described for hard reset while changing battery, but there must be some more.
When I change batter I pay attention to:
1) the lid
2) the red switch position
They are fine, but still the machine hard reset... I believe the problem might be due to the fact that sometimes after a battery change the XDA does not feel the new battery after I switch the red switch back so it doesn't turn on I loose all the memory... any idea on how to avoid it or be sure that the XDA has good contact with the battery before switching the red and crossing fingers...
had a hard reset too
I had a battery-change hard reset too recently.
I'm 99% sure I didn't screw up on the lid or the red switch.
Scarry. I lost two weeks of stuff that wasn't fully backed up.
I change batteries on a regular basis...
Scarry is a lot of people don't bother to make a backup...
I could care less about a hard reset, i just restore my backup from SD-card and sync.
Jpiek,
for me hard reset is still a pain becouse afterwards due to a change in the datestamp the PPC duplicates or deletes contacts in the PPC... so I need to manage the post-back-up sinc and that takes around one hour... are your backups more convenient? What software do you use?
Thanks,
Chris
I just backup useing the standard Xbackup, then re-sync with my up-to-date Outlook on my PC...
Works just fine for me...
Is anything new about this problem of Hardreset?
Hi all :
Just a little question, ammar :
If actually the red switch connects the backup battery, what happens when the standard battery is gone ? How do the backup battery gets active if we don't act the red switch ??
Thanks
Related
OK Guys lets see what you can suggest over this one!
I am a heavy user of the XDAII and as such I have 2 batteries and have had no problems in swapping batteries before. Yesterday morning (just before going on holiday) I was charging my battery in the XDAII using the powerlead and adapter and once it had completely charged I swapped it, so I could charge the spare as well. After I swapped it it decided it would hard reset itself losing all my data, software etc :x meaning a delay in me leaving as I tried desperately to put all the software back on (priority was Sat Nav and Speed Camera detector :wink: ) as I didn't have a backup .
What happened? - I've swapped batteries many times before without a hard reset. I can only think of the following two reasons
1) I was pushing the power button as the device reset itself after putting the battery in - therefore causing the hard reset. (pretty sure I wasn't but can't be sure as I don't have CCTV :wink: )
2) There is some form of power spike/drop that casued the hard reset as I had just disconnected the power cable from the device before removing the old battery meaning the backup battery wasn't in circuit (I doubt this one)
Incidently it appears that the SD card that was in the device at the time has been wiped - don't know if this is a seperate issue or whether this is linked (either way I was glad it wasn't my Sat Nav map data).
Any one any clues?
It sounds like the little red switch to release the battery wasnt fully slid over, or the switch in it had failed, if you disconnect the battery without this slid over fully it will hard reset the device and you loose everything,
The switch swaps the power over to the backup battery temporarily whilst you change the main battery, if it doesnt switch for some reason you loose all your data in less than a second !!
That may well have been it - I'd love to prove it but I hope you understand my reluctance :wink:
Does anyone know if it is safe to keep the charger cord attached while changing the battery? The goal, of course, is to prevent a hard reset. (Obviously, all data should be backed up to SD card first.)
Is there a post somewhere that outlines the recommended steps for the battery change? (Search has not yielded one.)
Thanks,
Steve G.
XDA on T-Mobile, GPRS
Hi, I recently replaced my battery with a higher capacity battery bought off ebay for $22US del from HK to UK in 5 days. search for ezipda, later bought one for an Ipaq for same price.
The process of changing over took 5 mins, BUT!! I would not recommend having it plugged in and changing batt. You may be shocked by the result (pun intended). I cant remember if it did a hard reset but dont think it did. As long as your back-up battery is charged and u are quick dont think there should be a problem.
Unscrew the screws and get a wide thin blade and go around the edge of the case, I didnt and caused a few marks ont he edges! There are a number of clips that pop open quite easily. The battery is held in place by double sided tape, use the the same blade and carefully prise the battery up. Replacement is a reverse of the procedure, the only tricky bit is the connector is quite small and a bit difficult to locate but not too bad.
Hope I have helped. :lol:
Thanks, BadgerBoy1.
The backup battery is the key, but how does one determine if it is working and charged? I've searched all over the system for an indicator of the backup battery, to no avail.
That begs the next question: If the backup battery is bad, where is it, and can it be replaced?
The phone switches off randomly. There is no explanation. When it does occur, I switch it back on, and it happens again if I shake the phone vigorously. I'm thinking it could be battery, because when it happens, I take the battery out and just wipe my finger over the connectors on the phone itself. After this its fine but it will happen again.
Has any1 else experienced this?
Should I invest in a new battery?
Is it the phone?
Any help would be appreciated. Thanks.
gsdaheley said:
The phone switches off randomly. There is no explanation. When it does occur, I switch it back on, and it happens again if I shake the phone vigorously. I'm thinking it could be battery, because when it happens, I take the battery out and just wipe my finger over the connectors on the phone itself. After this its fine but it will happen again.
Has any1 else experienced this?
Should I invest in a new battery?
Is it the phone?
Any help would be appreciated. Thanks.
Click to expand...
Click to collapse
If when you shake the phone it can go off, then as you suggest it's probably the battry contacts - though it might just be an internal connector.
To check if it's the battery contacts on the phone, I suggest inserting a strip of card between the battery and the case on the opposite side from the contacts. i.e to push the battery a little harder against the contacts.
If this improves things, you can then choose whether to have it repaired. If this method works it's as likely to be the contacts as the battery - so replacing the battery may have no effect. If you have a warranty then use it. Otherwise, you could bend out the contacts a little to make a firmer contact. I assume of course the contacts and those on the battery are clean/grease free.
Mike
I put a strip of folded paper to push the battery more onto the connectors. This has done it. Hasnt happened for 24 hrs now. I think ill just keep the paper there rather than mess with the connectors.
Thanks for the help.
gsdaheley said:
I put a strip of folded paper to push the battery more onto the connectors. This has done it. Hasnt happened for 24 hrs now. I think ill just keep the paper there rather than mess with the connectors.
Thanks for the help.
Click to expand...
Click to collapse
Good hope it continues to work
Mike
I just removed my battery for about 5 seconds and my magician hard reseted...although the backup battery is at 100%...and it is not the first time that this happens...
why?
Thanks for any info
depro
i got a similar problem... think its also related to the backup battery. Is the backup battery built-into the phone or into the normal battery? My phone goes off now and again especially when its in my pocket then when i turn it on again it had been hard reseted. I need to reset the screen and stuff and dates, msg's, contact everything had been deleted. Any help pplease. Depro did u get any answers?
only your answer.
I think my backup battery is buit in the phone. When I removed the battery my phone was on... i wonder if I should turn it off before removing the battery...
depro
Same here. I think the backup battery wears off since I have changed the main battery. When I asked the O2 Repair Center regarding this, they say that O2 Xda II mini does not have a backup battery. I show them the battery screen but they keep answering me the same answer. I felt like I want to punch them in the face.
Anyway, it was not so when I first bought it.
http://forum.xda-developers.com/showthread.php?t=334592
hi all, the answer to your problem is , to send your mini back to factory. they will replace the motherboard/backup battery. its damage thats why when you pull the battery out, your mini goes hard reset. somehow the backup batter doesnt work. happened to me long time ago. hopefully yours still under warranty.
just curious what should i do about it. everytime i swap battery, my clock resets.
where's the backup battery
There is no backup Battery...
I already faced that problem alot of times...
And I found out That there is no backup Battery for this Phone...
i am sure it's an internal battery. I am thinking of pulling my rw6828 apart.
i know there is cuz i remember when i first got it, it remembered the time.
ok. i pulled apart my rw6828.
there's a small battery soldiered onto the PCB.
i guess i just have to replace that.
it's a REALLY small battery.
4.5mm diameter
1mm thickness
ok the original battery is SR416.
but i replaced it with a much bigger battery.
i replaced it with SR616
both battery is micro silver oxide
i assume you have succeed .Have u solder the new battery ? i think all htc/quanta devices have backup battery .My old spv c550 ,and spv m600 have one both dead .I have spare battery but don't like setup clock every time i remove battery. Is there any way to software shut down the phone ( like in very low battery state) ?
thx in advance
nicefile
well you can always install an app called synctimedate
it uses GPRS to connect to internet and sync the time to the server