Z7 mini all of a sudden died on me - ZTE Z7, Z7 Max, Z7 Mini

My phone went black just after lunch despite having close to a full battery charge. I haven't been able to start it back up since. No response on holding down Power or touching the menu button.
Previously this has happened once or twice when the phone overheated. I was always able to get it back up after some time. This time however, I've gone so far as to disassembling the back cover and disconnecting the battery but to no avail. Charging it doesn't seem to do anything.
Any tips or should I consider this DOA?

Use your warranty

True, I could do that. But that would involve sending the complete phone to China with all my data on it.
Besides, warranty is kind of void after me opening the thing up and concluding that the battery isn't charging. Ordered a new one for $10.

Good luck

Related

Power problem

Our Cingular 3125 has seen its share of rough use. Our 2-year old got a hold of it recently and dropped it. The casing around the battery broke. Since the battery door would not stay on, the phone wouldn't boot. We sent in the phone (10 days left on the warranty at that time) and they replaced the casing and the phone now works.
However when on battery power, the battery indicator cycles between "charging" and "battery", just like you're plugging in the charger and pulling it out. This results in the external and internal displays turning on and off. It happens only when the phone tries to go into "sleep" mode. As in, you close the flip or with the phone open, you wait until the power saving kicks in.
Its been a couple months since we got the phone back (my wife switched to a different phone while the 3125 was being reparied), so the warranty is expired. I did flash the phone to WM6, but the phenomenon continues to happen. Any ideas?
failure
in this case it really seems like a mechanical failure - some shortcut most possibly.
Maybe someone here has good instructions on disassembly of the phone?

[Q] Random freeze, vibration and bricked on stock ROM?

I am on Stock ROM ... when I got the phone almost a year ago, I rooted it, and eventually went to GB, and didn't root it (only rooted back then for VPN access).
Yesterday, midday, phone vibrated about 3 or 4 times, and then randomly rebooted. Screen wasn't even on. I wasn't using it.
Last night, I was listening to an audiobook, and it started vibrating again. about once a second. This went on for about a minute, so I pulled the battery. Now, no matter what I do, it wont turn back on. If I plug it in to the charger, I get virbration. When I take the battery out, while it's on the charger and put it back in, the charging screen comes up, and immediately disappers. Occasionally, I am able to see the SAMSUNG logo (two of them) and it fades.
I haven't done anything "unofficial" in the last day or so..I did update a couple of apps right out of the Play Store, and for the first time, ever started using Google Play Music and Samsung "Music Player" app. Neither of which should have been able to fry my device! One thing that I noticed is that it was pretty hot when it started vibrating.
Should I mess with jigs and Odin etc, or just warranty it out? I'm afraid to void the warranty trying to fix it...?
Your power button is stuck.
thanks - but i don't think that's it. i hear it clicking... how can i know for sure or fix ?
I called ATT, they are sending a warranty replacement. I think something related to battery... if i leave it on the charger long enough, I can get the Samsung logo to light up. after a while, it stops doing that. Also, the battery was pretty hot when I pulled it. Going to stop by a ATT store to see if they would be willing ot let me check my batt on a display phone, or their batt on my phone - so I can stop the warranty shipment.
Haven't heard of a stuck power button causing the heat issue as you describe it, although I suppose it's possible.
But I'm leaning toward the battery condition as well.
My opinion on the exchange is to take the warranty phone if you have any questions about damage being done too the device.
And although it's nearly impossible to tell without diagnostic equipment and such, I'd be willing to say that damage is likely with an excessive heat condition .
Your call of course .....g
Sent from my SAMSUNG-SGH-I717 using XDA Premium HD app

Phone died; can it be resurrected?

So, my DNA is outside of the warranty period (was provided with the phone after numerous issues with another phone model in January I had originally purchased last August) and yesterday, it appears that it managed to brick itself. I was running cm 10.2 ( without issue I might add), when yesterday morning, after being on a wireless charger all night, the battery drained from 100% to 0% in about half an hour while getting incredibly hot. The odd thing is, I couldn't find a software culprit during that time. Also, the phone basically started to trickle charge only, even when the phone was off. Thus, I waited about an hour with the phone off to charge it to 10% and bottled into TWRP to restore a recovery of a Sense ROM. Mid-recovery, the phone shut down instantly and since, I haven't been able to get it to charge (no light) after multiple attempts with different charging solutions and combinations of button presses. I have a new phone on order via my carrier contract upgrade, but I'd love to resuscitate this thing, if not just to get my data off that hadn't been backed up. Does this sound like a hardware issue (I.e. Bad battery) or do you guys think the phone bricked itself when it shut down during the restoration process? Any troubleshooting tips?
chances are hardware failure as it seems common lately on here lol and you can buy a phone with a bad screen and lose your info or jtag and lose your info or keep a pretty black and red paper weight either way unless it takes a full charge and you are luck to get recovery back up a good backup to take your out of luck enjoy your new device coming
t1gartist said:
chances are hardware failure as it seems common lately on here lol and you can buy a phone with a bad screen and lose your info or jtag and lose your info or keep a pretty black and red paper weight either way unless it takes a full charge and you are luck to get recovery back up a good backup to take your out of luck enjoy your new device coming
Click to expand...
Click to collapse
It seems that way. Been on the charger for 3 days with no luck. I think I'm going to order one of those case opening tools and see if I can remove the battery cable for a reboot.

Power button failed. Unrooted/locked, ran out of power.

A friend of mine got an under-warranty replacement for his first DNA a couple of weeks ago, but now the replacement's power button is pretty much unusable. He has another replacement coming, but in the meantime, I directed him to an app that would use the volume buttons to wake up the phone.
Of course, the app used more power - and my friend accidentally let the battery drain to the point of shutting down. The only thing he can do (that we know of) is connect it to power, giving him the pseudo-recovery charging screen.
Short of anything that would void the warranty, is there anything my friend can do to squeeze a little more life from the phone until the replacement arrives?
The replacement phone arrived, so after trying a few things and failing, my friend decided to give up and shipped the old phone back to Verizon. Thankfully, he had a slightly-old backup of all his unsynced data on his laptop.
Admins, please close.

My Galaxy View won't turn on

I've had my View since 9/16. I use it everyday for probably 6 hours or more. Every night I turn it off and plug it into the factory charger. I tried to turn it on the other day and it will not turn on. I'm a geek so I've tried everything I can find on the web and Samsung's site to get it to work. I contacted Samsung and they've sent me a label to send it back to them for their evaluation and price to fix.
A couple questions for other forum members:
1. Has this happened to anybody else?
2. Anybody had the battery die? I've put a lot of hours on mine...
3. Anybody had any experience with Samsung service?
Thanks for any feedback...
Larry
I have not had this happen to the View, but I have had it happen to a few other devices when I used to test devices for a wireless carrier. This can happen when the battery is "too dead". If the battery drops below a vital level then it can fail to start up into the charging boot screen. If it was on the charger, it's possible that your charger failed and caused a parasitic loss to the tablet. This is, perhaps, the worst problem with non-removable batteries. Sometimes you can hold the power button down while plugged in and it will start charging again. I assume you have purchased, or already have, a second charger, to rule out it being a charger issue. To have any chance of this method working, you will likely need to hold the power button for at least 10 min while attempting to charge. Basically the concept is that you are trying to get the power to flow to the battery even while it can't boot the charging screen kernel.
Thanks for your detailed reply. I really appreciate it. And I did try another charger. Didn't try holding down the power button for 10 minutes, but I get your point. I contacted Samsung and they provided a 2nd Day Air return label, which I thought was generous for a tablet out of warranty. So it's on its way to them to evaluate and give me an estimate to repair. I'll post when I hear back from them. Thanks, again, for your reply.
Samsung discovered my motherboard needed to be replaced. Cost $109 including shipping both ways and it seems to be working just fine. Of course now I have to get everything set up again. I thought the price was reasonable - a heck of a lot cheaper than a new one.

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