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i-mate JasJar - vibrate mode not working

For some reason, my i-mate JasJar refuses to work in vibrator mode. I rarely use it, and am not sure when it stopped working.
A couple of days back I put it in vibrator mode and later noticed that there were quite a few missed calls/messages.
Any ideas on this anyone.

gmathews said:
For some reason, my i-mate JasJar refuses to work in vibrator mode. I rarely use it, and am not sure when it stopped working.
A couple of days back I put it in vibrator mode and later noticed that there were quite a few missed calls/messages.
Any ideas on this anyone.
Click to expand...
Click to collapse
I assume you have tried to test whether it is a specific problem by going to "notifications" under "settings" and chosen "vibrate", then pressed the play icon and it didn't work.
In this case I'd make a backup and look what happens after a hard reset. If it never worked for you with this rom, flash an original one.
If the problem still is there by now, it most certainly is a hardwareerror. So open the unit and remove the vibrator. Be careful with its plug and use a tool or your fingernails as a tool, if they're long enough.
If you haven't a tweezer and short fingernails, ask your GF to do it or try if can come on to girls with asking them to help you with this
Anyway, once out measure the resistance of the vibrator. It should be within a reasonable range, meaning not about zero and not above some, hmm, perhabs dozens, Ohms.
I don't know if this thing gets connected to full battery voltage, but testing it with something about 3V should not harm it, if you don't have something to measure resistance. If it doesn't move, meaning vibrate, you have the reason why it doesn't work.
If you want to be sure you now measure whether it gets juice or not if your phone should vibrate. I don't know what the chances are, but it is possible that the circuit that enables it got damaged.
If the vibrator seems to be fine you should do this anyway.
What's up if the vibrator's working and full battery voltage is on it's connectors when the phone should try vibrate I do not know. But the chances of the problem being easy to fix are then gone to about zero

In this case I'd make a backup and look what happens after a hard reset. If it never worked for you with this rom, flash an original one. - Did this, without any luck.
If the problem still is there by now, it most certainly is a hardwareerror. So open the unit and remove the vibrator. Be careful with its plug and use a tool or your fingernails as a tool, if they're long enough. - It sounds easy enough - but could you help me here? - open the unit - i have never gone beyond replacing batteries so how do i know what to look for?
Thanks in advance

gmathews said:
It sounds easy enough - but could you help me here? - open the unit - i have never gone beyond replacing batteries so how do i know what to look for?
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Click to collapse
Well, there isn't a button to press that will just open the case for you, but if you're not cursed to have more thumbs than fingers you should be able to do it.
You just need the proper torx screw driver and something to unlock the plastic hooks that keep the phone closed after the screws are gone. I used a cut out part of the blister package from my SDHC card, a good friend of mine always uses old credit and membership cards. Just be sure to use something made out of soft material that won't bend too easily when lateral force is put on it. If you use something made out of metal you will most certainly leave scratches.
If you don't really know what I'm talking about, go to the Wiki page, found here: http://wiki.xda-developers.com/index.php?pagename=HTC_Universal
There is a section "Hacks and Tweaks", in which is a link to the service manual. Get that and read through the pictured manual to disassemble te device. Now take a look at your phone and the narrow gap between the parts of the housing and you will know why I brabbled so much about that. And also the size of the torx screw driver you'll need.
In service manual everything is described step by step, with lots of photos. You have to know for yourself if you're gonna do that or leave it to someone else. It looks more horrifying than it actually is, the quality of the housing material is good and what you wanna do is relativly easy but if something should happen you are hereby told that nobody else can be held responsible.
Since I don't know you, I can't really recommend you to do or leave it, but it's really not a big deal and the bucks some guy at a shop will charge you for less than five minutes of easy work are better off to be donated to your favorite rom cook

don't vibrate
I had this problem when I opened my 64 mb uni and I managed to make it work again.It took many tries to get it work again.I think the way you put it in his "socket" let it vibrate or not...
Now it's the same problem with my 128 Mb uni which came back from retronix (upgrading ram) with vibrator "HS".I opened it and didn't manage to make it work again, i'll try later but i'm sure it's not faulty, just the way they put it back.
EvilJogga is right, service manual is usefull, I was afraid to open my uni's, now i do it with "eyes closed".
Sorry for my bad english, good luck !

Change the radio ROM
gmathews said:
For some reason, my i-mate JasJar refuses to work in vibrator mode. I rarely use it, and am not sure when it stopped working.
A couple of days back I put it in vibrator mode and later noticed that there were quite a few missed calls/messages.
Any ideas on this anyone.
Click to expand...
Click to collapse
I had the same problem with Radio ROMs 1.17 and 1.18 - changing it back to 1.15 returned the vibration.

[HELP] Phone boots up only when cold ?!?!

Hi people,
I have a question, I've been reading these forums a lot but now I have a problem that I don't really understand:
My HTC Trinity that has served me well does not want to boot at normal temeratures 21C - 70F. The akward thing is that if I put it in the freezer for 10 mins, it starts working , doesn't get hot. As it reaches 20+C it freezez or doesn't want to wake up from sleep anymore.
Any ideas as to why this happens it's clearly a hardware fail but what part of it ?
any help would be greatly appreciated.

Maybe it's the battery......did you tried it with other batteries....?

It maybe that you have a poor connection within the phone being affected by thermal expansion. Might also be moisture condensation in your phone (made worse if repeatedly placed in and out of a freezer) that requires drying out.

hfzarx said:
Maybe it's the battery......did you tried it with other batteries....?
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Click to collapse
I'm guessing it's not the battery as when I put it in the freezer I take the battery out. Also, while the phone is off the battery charges normally, without heating up or anything.
The theory of a faulty contact makes more sense but then which one ? I do now have a star shaped screw driver with me (I'm travelling for the moment) but I'll try and open the phone once I get back to a more tinkering friendly environment.
I have put it since in a drawer and it has been waiting for me quietly. In the mean time I bought a Sony Xperia X1 which is an excellent phone. I would still try to fix my trinity, I'd use it exclusively as a GPS if it works.
Any other theories as to why this might happen or what should I do to fix it?
Thanks guys for the useful replies !

When issue occurs will it power up plugged into charger?
As BundyR stated there is a poor connection somewhere. Also known as a "cold solder joint". The trick will be having device apart but still being able to power it up at the same time and start poking around with a toothpick and a magnifying glass starting with the battery contacts and moving on from there.
good day.

Phone keeps turning itself off. Has anyone else experienced this?

I lock my phone and about 10 mins later I go to unlock it and the phone powers up meaning that it has been turned off. There is absolutely nothing wrong with the charge of the battery but it keeps doing this. The other week the phone wouldn't respond for about 5 hours I would touch it and the touch screen was completely dead. I locked the phone and then the screen went black and the touch buttons at the bottom lit up and that was it the phone crashed so I needed to restart it and it just wouldn't work. 5 hours later when I woke up it responded and Bare in mind I ran about 5 ruus to get the phone back to stock so it wasn't a software problem. So has anyone else experienced one of these problems. The random shutdown is my issue at the moment. I'm considering returning it for repair because isn't it true that htc have a 2 year warranty in the uk?

Sounds daft but I'd put a piece of folded paper on top of the battery to ensure it has perfect contact and isn't able to move at all.....I have heard of others who have experienced this issue.
I would also see if you could get another battery for a short time and try that just to rule out that it is an issue with the battery.

ben_pyett said:
Sounds daft but I'd put a piece of folded paper on top of the battery to ensure it has perfect contact and isn't able to move at all.....I have heard of others who have experienced this issue.
I would also see if you could get another battery for a short time and try that just to rule out that it is an issue with the battery.
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Click to collapse
Doesn't sound daft it's a great Idea. I have blu-tack on the slide off cover at the bottom to keep it from jiggling as one of the plastic clips broke. I will probably test another battery because they aren't exactly expensive. Do you know anything about HTC's warranty int he uk ben_pyett? Thanks for the help

sharpinator said:
Doesn't sound daft it's a great Idea. I have blu-tack on the slide off cover at the bottom to keep it from jiggling as one of the plastic clips broke. I will probably test another battery because they aren't exactly expensive. Do you know anything about HTC's warranty int he uk ben_pyett? Thanks for the help
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Click to collapse
I have heard multiple users that they simply rang HTC up, complained that battery didn't work and got a new one sent out.....so try that....and attempt if possible to hang on to old one, as if it turns out to be device, you get a free battery

Same issue for me, it drove me nuts. Turned out to be a faulty battery when sent off to HTC/Vodafone for repair. They replaced it so I wonder if it's a known issue.
Sent from my Desire S using xda app-developers app

ben_pyett said:
Sounds daft but I'd put a piece of folded paper on top of the battery to ensure it has perfect contact and isn't able to move at all.....I have heard of others who have experienced this issue.
I would also see if you could get another battery for a short time and try that just to rule out that it is an issue with the battery.
Click to expand...
Click to collapse
This.
My phone used to shut down randomly and I searched and found out that it is due to the bad design of battery placement in this phone. All I had to do was put a small piece of paper and it has never shutdown till then.

I'm definitely going to try this, I've been getting lots of resets and I'm relieved it's not a rom issue
edit: how many times did you guys fold the paper over?

ben_pyett said:
Sounds daft but I'd put a piece of folded paper on top of the battery to ensure it has perfect contact and isn't able to move at all.....I have heard of others who have experienced this issue.
I would also see if you could get another battery for a short time and try that just to rule out that it is an issue with the battery.
Click to expand...
Click to collapse
i had issues with my phone turning off too, had it slightly wet at one point so i took it to a phone repair joint, they replaced a few things charged me and it had the same problems afterwards, a test battery proved it was the bloody battery all along!
the tech there let me know our batteries have a soft edge that when pushed up hard against the battery slot it slightly deforms, seems like a bad design if you look at the battery up close you can see one where the edges get pushed in a bit, (well on mine anyway) the test battery i borrowed didn't have the edges pushed in.

Had this problem too. Paper did the trick.

My HTC 828 is always going off by itself, once I open the camera or put on my mobile data the phone goes off please what should I do?

Me too have same problem..My HTC desire 828 dual sim turning off automatically, mostly when I play any videos or turning on camera. Tried factory reset many times but no use..

HTC 828 ramdomly switching off on data use, battery drains off
I also have the same problem...whenever I use apps which use data, the phone goes switch off and many times when I switch on the phone, apps starts optimizing again and again...sometimes battery drains off immediately...please help me...whats the issue...

Phone switching off itself. Nearly same problem is what I face with this HTC 828
theguitarman94 said:
I lock my phone and about 10 mins later I go to unlock it and the phone powers up meaning that it has been turned off. There is absolutely nothing wrong with the charge of the battery but it keeps doing this. The other week the phone wouldn't respond for about 5 hours I would touch it and the touch screen was completely dead. I locked the phone and then the screen went black and the touch buttons at the bottom lit up and that was it the phone crashed so I needed to restart it and it just wouldn't work. 5 hours later when I woke up it responded and Bare in mind I ran about 5 ruus to get the phone back to stock so it wasn't a software problem. So has anyone else experienced one of these problems. The random shutdown is my issue at the moment. I'm considering returning it for repair because isn't it true that htc have a 2 year warranty in the uk?
Click to expand...
Click to collapse
Nearly same problem is what I face with this HTC 828 desire
Never knew that HTC would let me that down
Worst company ever
The only reason this phone was with me was due to its good camera qualities else
This phone couldn't give any better loudness if not accompanied to speakers ....each time while watching any video I need speakers
Well ...this phone made me realise that it's not necessary that good priced phone are necessarily good
---------- Post added at 04:30 AM ---------- Previous post was at 04:26 AM ----------
theguitarman94 said:
I lock my phone and about 10 mins later I go to unlock it and the phone powers up meaning that it has been turned off. There is absolutely nothing wrong with the charge of the battery but it keeps doing this. The other week the phone wouldn't respond for about 5 hours I would touch it and the touch screen was completely dead. I locked the phone and then the screen went black and the touch buttons at the bottom lit up and that was it the phone crashed so I needed to restart it and it just wouldn't work. 5 hours later when I woke up it responded and Bare in mind I ran about 5 ruus to get the phone back to stock so it wasn't a software problem. So has anyone else experienced one of these problems. The random shutdown is my issue at the moment. I'm considering returning it for repair because isn't it true that htc have a 2 year warranty in the uk?
Click to expand...
Click to collapse
Nearly same problem is what I face with this HTC 828 desire
Never knew that HTC would let me that down
Worst company ever
The only reason this phone was with me was due to its good camera qualities else
This phone couldn't give any better loudness if not accompanied to speakers ....each time while watching any video I need speakers
Well ...this phone made me realise that it's not necessary that good priced phone are necessarily good
What should I do to get rid of this problem
(Before I resell it)
My battery couldn't be removed
So the solution of paper couldnt be fine with it
:crying:

hi have same issue on my htc d820ts so i flashed it with new firmware and check the battery connector or power supply area its ok but phone issue is same so please if some one have any idea help me

Finicky LCD? Other problems too

So i've been having a lot of issues with my N5 lately, mostly small stuff like general slowness, poor battery life, not surprising on an almost 3 year old phone. I also lose cell service way too frequently (not an issue with my carryer, all my friends are on the same network and are fine). Camera won't focus anymore (though im pretty sure this was my fault, probably broke it while taking it apart). I'm pretty sure the battery connector on my motherboard is damaged. I've had many problems with the battery reading its temperature as -30 C (battery heath "cold"), i've replaced the battery 4 times now and i still get that problem every now and then. Pushing on the connector fixes it temporarily, so im pretty sure some pin is bent slightly out of place and i don't know how to fix that. It recently started having this issue where just moving or bumping the phone the wrong way would cause the phone to shut off. Probably an issue with the battery connector again. I tried fiddling with it but it didn't do much.
The other day i turned it on and the LCD was backlit, but black except for one single vertical white line. Rebooted and it looked normal. Few hours later i got really pissed off with it for shutting off in the middle of an important text and threw it at the wall (not the best idea i know). Screen was already cracked so i didn't really care. Ever since then the LCD has been a real pain in the ass. i can turn the phone on but there's nothing on the screen. Ii get haptic feedback when the Google logo would up, and the notification LED is flashing like i have a message. The backlight is on and pushing hard on the cable connecting the motherboard to the daughter board i can see it start to turn on, (Google logo, few seconds of boot animation) but then back to black (while still backlit).
I can post photos if it would help diagnose/fix this, my phone is my main camera and i don't want to bother anyone if i don't have to.
Anyone know any tricks that might squeeze another mouth out of this dying phone? Any response is appreciated, Thanks!

The issues could have been related to the power button or physical internal damage. My suggestion: replace the screen with a cheap 3rd party screen if the internal components are still working. This will give you more time with your existing phone and allow you to have a working backup.

Xz premium freezing and resetting when i unlock it. Also no volume up, related?

Hey Guys so i have searched high and low for a solution and still can't figure out a fix. i've read on sony forums that other people experienced the same issue but can't find a fix. I got the phone second hand (risky i know but i took a gamble) and it already have android pie. At first it was working great and i was quite happy with the phone but as i started using it every now and then it would reset itself at random, even in my pocket, then it started freezing when i unlocked it and eventually reset and work again for a bit. from the start the volume up button was not working but i can deal with that. on other threads i have read that some people are having the exact same issue. Help is very much appreciated.
So far i've tried turning off fingerprint unlock, uninstalling apps, turning off auto brightness, turning off the code unlock, factory reset, flashing to android oreo, and running in safe mode and so far none of that has fixed the issue. (although it helped temporarily giving me false hope!)
i'm going to try flashing back to nougat as a last resort but am not going to have too much false hope. Thanks for reading and any help in advance!

leemo89 said:
Hey Guys so i have searched high and low for a solution and still can't figure out a fix. i've read on sony forums that other people experienced the same issue but can't find a fix. I got the phone second hand (risky i know but i took a gamble) and it already have android pie. At first it was working great and i was quite happy with the phone but as i started using it every now and then it would reset itself at random, even in my pocket, then it started freezing when i unlocked it and eventually reset and work again for a bit. from the start the volume up button was not working but i can deal with that. on other threads i have read that some people are having the exact same issue. Help is very much appreciated.
So far i've tried turning off fingerprint unlock, uninstalling apps, turning off auto brightness, turning off the code unlock, factory reset, flashing to android oreo, and running in safe mode and so far none of that has fixed the issue. (although it helped temporarily giving me false hope!)
i'm going to try flashing back to nougat as a last resort but am not going to have too much false hope. Thanks for reading and any help in advance!
Click to expand...
Click to collapse
You pretty much ruled out a software issue by reverting back to Oreo and all that.
Volume rocker isn't something that just fails on these phones, so that's suspicious to me.
In most cases freezing/rebooting is caused by a faulty current supply (battery) and distribution (conectors, cables, capacitors...), if the software issue is ruled out. Faulty screen, screen connector and cable can cause freezes, the phone itself doesn't freeze up, but the image on the screen does, so it looks like the entire phone freezed, but it didn't, just the screen. Again, this as well can be caused by bad power delivery to the screen.
I would take it apart, take a closer look at the board, connectors, possible corrosion and dirt on capacitors, and replace the battery since it probably hasn't been replaced ever, and it's now a fairly old phone, and second hand, god knows how was it charged and treated in general.
If you never opened a phone before, I wouldn't suggest you start with this one, it's not really "novice friendly". Take it to someone who does board level repairs.
My best bet would be the phone was opened and some service has been done on it, but not properly+bad battery/battery connection.
Volume rocker is very easy to mess up, if you don't reseat it well it can fail to register pushing the button.
There really isn't a simple straightforward answer to you issue, if the software is 100% ruled out, the board and battery needs to be checked out, specially if the phone was opened before.

Atrax2010 said:
You pretty much ruled out a software issue by reverting back to Oreo and all that.
Volume rocker isn't something that just fails on these phones, so that's suspicious to me.
In most cases freezing/rebooting is caused by a faulty current supply (battery) and distribution (conectors, cables, capacitors...), if the software issue is ruled out. Faulty screen, screen connector and cable can cause freezes, the phone itself doesn't freeze up, but the image on the screen does, so it looks like the entire phone freezed, but it didn't, just the screen. Again, this as well can be caused by bad power delivery to the screen.
I would take it apart, take a closer look at the board, connectors, possible corrosion and dirt on capacitors, and replace the battery since it probably hasn't been replaced ever, and it's now a fairly old phone, and second hand, god knows how was it charged and treated in general.
If you never opened a phone before, I wouldn't suggest you start with this one, it's not really "novice friendly". Take it to someone who does board level repairs.
My best bet would be the phone was opened and some service has been done on it, but not properly+bad battery/battery connection.
Volume rocker is very easy to mess up, if you don't reseat it well it can fail to register pushing the button.
There really isn't a simple straightforward answer to you issue, if the software is 100% ruled out, the board and battery needs to be checked out, specially if the phone was opened before.
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Click to collapse
Thanks for the comprehensive reply, so would system ui not responding also be due to the hardware? I just thought it was strange that some other people had posted pretty much the exact same issues.. I'll start looking around for someone to pull it apart for me. I've done some screen repairs on one phones but I'm not willing to screw this one up so I'll find an expert!

leemo89 said:
Thanks for the comprehensive reply, so would system ui not responding also be due to the hardware? I just thought it was strange that some other people had posted pretty much the exact same issues.. I'll start looking around for someone to pull it apart for me. I've done some screen repairs on one phones but I'm not willing to screw this one up so I'll find an expert!
Click to expand...
Click to collapse
Ofcoruse, mostly power delivery. If for example the cpu or the screen isn't getting correct voltage and power, it can missbehave or freeze up as a failsafe to prevent damage.
As I said, I would take a look at the board, and change the battery with a known good one, since I have spares lying arround, to eliminate that variable as well as software.
I presume you're not rooted and you're troubleshooting using oem firmwares. If not, all bets are off.
A faulty battery can be a culprit of many issues that look like software/ui issues, but they're not.
Make a full software repair with latest official version, if it fixes nothing, it's a hardware issue.

Atrax2010 said:
Ofcoruse, mostly power delivery. If for example the cpu or the screen isn't getting correct voltage and power, it can missbehave or freeze up as a failsafe to prevent damage.
As I said, I would take a look at the board, and change the battery with a known good one, since I have spares lying arround, to eliminate that variable as well as software.
I presume you're not rooted and you're troubleshooting using oem firmwares. If not, all bets are off.
A faulty battery can be a culprit of many issues that look like software/ui issues, but they're not.
Make a full software repair with latest official version, if it fixes nothing, it's a hardware issue.
Click to expand...
Click to collapse
Thanks very much, I'll give that a go first!
If it fails where and you are close to me (Melbourne Aus) how would you like a project?

I share with you my personal experience.
The phone is amazing, is very fast, efficient, amazing sound, amazing screen.
I have the same problem with the volume up bottom but in my case it was caused for a fall incident, I took it apart and I discovered there is one flex connector that goes from the mother board and is shared with the volume bottoms, the power- fingerprint sensor, the camera bottom, the lower speaker and the lower microphone.
In fact due to that fall I am having problems with the volume up bottom as I wrote, the lower microphone, the lower speaker and sometimes the fingerprint function does not work.
I think is still worth having the cel phone, I`ll search for the flex to fix it up
I think most of the description Zagreb does of your case can be adjusted to the reality of what is happening, I think is necessary a technical checking of the hardware.

I'M sorry, of course I meant buttons and not bottoms!

Freezing, unresponsive ui and volume buttons not working properly.
I've had this same issue for a few weeks tried hard resets safe mode, etc, nothing helped. So after much frustration searching forums to no avail I set to and tried a deeper investigation into my own device, I accessed the dev options and looked at power hungry services. The most hungry was Xperia home so I stopped it and low and behold my phone hasn't locked up since, still volume buttons are mostly not working but I'm not locked out any more.

Same here,
First randomly reboot, after factory reset randomly system UI failed constantly , very annoying.
Indeed button up volume is not working (properly).
Someone found solution for this? I already purchased a new battery.
@Chernob0g : how you disabled/stopped Xperia Home so I in meantime can use my phone.

Replaced battery, looks better now.
Volume up still not working, but freezing looks solved.