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Dear Sir,
My ipad mini now cannot be turned on , i tried everything , e.g. holding the power and home button together, shaking it , charging it, ....
It's still black , Could you please help me to turn it on ?
Best regards
John
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Hi John,
Eric has given you some good advice, I'm starting to like that guy :)
I would just add that iPad mini "no power" is commonly one of two things.
1.) True no power = the iPad is not recognized by iTunes when plugged into the computer. This can be several things, but the common one we're seeing a lot of is an inability for the iPad to charge due to 'non-Apple charger' damage to the charging ic inside the iPad. This chip is very sensitive to voltage fluctuation. If the chip is damaged, the mini can't charge, and will present as a dead mini. This is the most common cause of no power IF the mini has never been opened and not seen water.
2.) No display = the iPad is actually on, it is recognized by iTunes. There is just nothing on the screen. This rarely occurs in unopened minis, but it is extremely common in any mini that is under repair. The iPad mini backlight filter acts like a fuse for the backlight circuit. It is very sensitive to damage from a sudden spike in amperage that occurs when you disconnect the LCD flex from the mini motherboard without first disconnecting the battery.
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Ok, so it is true no power.
Before concluding that it is the charging ic inside the device, we have to rule out other possibilities.
1.) Will the mini boot with a known good battery? This is going to mean opening up the mini---before we do that, you may want to visit the Apple store to see about getting an out-of-warranty replacement. Every now and then an Apple genius will just replace a device that has never been opened even if it is out of warranty, as long as there are no cracks/ frame damage, water damage. Once you open the mini, they may be less inclined to accept it. Once the mini is open, try to see if it will boot with a known good battery. If so, see if it will charge---you may get lucky and this is just a bad battery.
Next, look at the charging port--is there any damage? If so, the correct repair is replace that port. (This requires microsoldering skills)
If the charging port is not damaged, and the iPad will not boot from a known good battery, then this is chip-level board damage. In general, the effort required to troubleshoot and replace a 'big' chip on the board exceeds the value of the device so it is not feasible. However, if the problem is a small SMD component, then that can be repaired if you can identify the damaged component. Look hard at the board under microscopy and see if you can find the damaged/burned/missing component
i appreciate your help jessa but my ipad dont have connectivity with i tune either no power on too, as per your suggestion its might be its issue of charging ic so i opened my i pad and change battery to check for diagnosis my charging section, basically charging IC worked for charging your cell but now i have full powered battery and i replaced with old but no luck there is no shorting issue too, its cold dead of my ipad mini 1(RIP) LOL
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Hi John,
Did your iPad receive any damage recently? Has it ever been opened/worked on before? What happened prior to this issue? When you say it is black, do you mean that you cannot see an image on the screen at all, or is the screen displaying an image but there is no light so it is too dark to see?
Have you plugged it into a computer to see if it is recognized by your computer? Have you tried a different cable/charging brick to make sure it is getting power?
I will need a little more information from you in order to give you some possible causes.
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Kind of necroposting, but since this is my exact problem, why not chime in instead of making a new post for the same issues.
Just checking some things :
- the iPad Mini I have here (actually I have two, both died within a week after being used with the same crappy charger and fake cable) is completely dead. I measured the battery, which is at 2.65v. Should be enough to start it up, right ?
- first thing I did was seeing if it pulled any current, it didn't. Just stayed at a comfortable 0.00a.
- saw nothing blown up or damaged on the board under the microscope
- measured and got short to gnd on caps C8119 and C8120, which makes me think it's either U2 or PMIC. Replaced U2. Still nothing.
-measured diode D8100 which gives me 0.162v when the battery is not connected and 0.0v (short) when the battery is connected.
Anything else I can try before I'll attempt to replace the PMIC (which should arrive this week) ? I don't have a spare known working battery here, but since the one I have is at 2.65v and doesn't cause a short on its own, I'm not readily saying the battery is bad.. which might be wrong ?
update : removed the PMIC (what a <insert random swearing words here> to remove).. and the shorts are gone. Now let's pray I didn't pull any pads. It really took a lot of heat (500 degrees celcius) and a !&&* of lot of flux. I removed the underfill around the PMIC before I started, but still.. this is one of the most stubborn ICs to remove I have encountered so far.
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Hi jessabethany and Eric
I mean option number 1 , the ipad has no power and cannot be recognized by itunes when plugged,
How can i change the charging ic inside the ipad ?
Best regards
John
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Hi jessabethany and Eric
Mine was option number 2. What i did before it happened i multiple the display so i cam remove some running apps then someone calls me thru facetime and i accidentally lock it then it happens i heared siri everytime i hold the home button ang lock button but theres nothing on screen. There's something that i can do to fix it?
Same happened to my ipad mini, i cant see anything on my screen but if i hold the home button i can hear the sound of siri
The screen froze up when it was trying to update the messenger app and won't boot up. I can't even turn it off.its stuck in reboot mode.help!
Thanks
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Try holding power and home for 60 seconds or until the Apple logo pops up. Did it boot up?
If not, connect it to your computer. Hold down power for 5 seconds, then while still holding power, hold home for another 15 seconds. Once the Apple logo appears, release the power button but continue to hold home until "Connect to iTunes" appears.
Then let go of all buttons and follow the iTunes prompts.
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Hi John,
If none of these solutions work for you, something might be wrong with its hardware and need replacement. The most common reasons are the backlight on the screen assembly, or the backlight coil on the logic board is damaged.
It’s might be time that you give Apple a call or go to a retail store nearby.
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Albert--just to be clear--there is ZERO chance that the problem with this mini is the backlight coil.
Hi, you're considerate, but if there's a hardware error, it would be better to deliver to a retail store.
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Pls help me to operate my ipod mini
by ruben cunanan