iPad mini suddenly won't turn on? Change Power Management ic

iPad Rehab Microsoldering & Data Recovery

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My soldering station with standard iron: amzn.to/2hG656k
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›Ultrasonic cleaning:
Crest iphone sized cleaner: amzn.to/3qVxO52
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My hot air station: JBC TE-1QD not available on Amazon, $1500
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›Diagnostic tools:
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DC Power supply: amzn.to/2iRN9hj
Multimeter: Fluke 115 amzn.to/2iqMmou
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Zxwtool: tinyurl.com/2p86e33y
Storage Repair Case:
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19 сен 2015

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Комментарии : 135

@JessaJones 6 лет назад

Buy a PMIC with same day shipping from NYC! store.rossmanngroup.com/index.php/ics-components-and-chipsets/components-by-type/power-circuit-components/pmic.html

@PabloCandybarbarian 8 лет назад

Your videos are true inspiration for someone just learning these concepts. You definitely earn your subscribers. :)

@JessaJones 8 лет назад

+Fy S thank you :)

@erjmljr 4 года назад

Fantastic work. I got out before surface mount really took over. My eyes are to bad to even consider doing something like this now.

@centralvalleyirepair7547 8 лет назад

you are awesome! thank you!!!!!

@odomeroamugini5793 5 лет назад

You're great, i wish to be like you soon. You are so good in troubleshooting and rebaling. Thanks.

@rayrcman 8 лет назад

Hello, love your videos. Thanks for helping out with black light issue. I wanted to ask if the is a hack for fixing a torn IC chip digitizer ribbon? Or broken button ribbon solder tabs? Thanks.

@squeeshygaming 7 лет назад

loved your vids very educational specially for a beginner tech like me..

@sandeepvishwakarmaiphone 7 лет назад

Thank you so much

@ksawat2471 8 лет назад

Thank you for your video! I have an ipad 1 that doesn't turn on, tested with good battery still no good. I'll try to change the pm ic tomorrow. Have you seen this guy on "Deep Fix" on RU-vid changing pm ic chips? He makes it look so easy to do. thanks Jessa.

@tomlomax9909 7 лет назад

That was awesome! When you coated the braid with low-melt solder AND flux - was that to do the entire task in one go (instead of separate flux, low-melt, braid steps)?

@misamokuzelpizu 6 лет назад

i am verry impressed that you rewired some of those pulled up pads by hand .. firdt thing i thought when i saw that chip was, that it would be great to have some kind of micro mill to mill that thing off, and the you said something similar..

@muhammedalghamdi6622 8 лет назад

very nice job 👌 from where did u buy the new chip ? best regards

@cezartech112 3 года назад

Good fob thanks.

@AndreyPkr1RS 8 лет назад

good job!

@tavoonly 8 лет назад

It would be so nice if you could show part of the video where you are making the jumpers for the missing pads (maybe one day that same pads could be missing in another board repair)... Really nice job made from your mind and hands... cheers,

@bezaleelzv 7 лет назад

excelente trabajo saludos desde venezuela

@AndreLuiz-ip3fh 8 лет назад

Kerry, I heard that they use this compound to anchor the chip, because the heat generated in the charging process would melt the welds, and lift the m.c. accidentally.

@mohamedhamouda6402 8 лет назад

you are amazing...

@TheScoodynshaggy 4 года назад

can you tell me how you learned this stuff? I am in love with this kind of work and i would love to be able to open up a shop that fixes mobo type issues for all microelectronic devices.

@Eklegomai 8 лет назад

i found out that car paint remover is quite good to apply around the chip.after a while it dissolves the glue.then you can use a brush to wash it away and apply heat to remove ic.

@jaa93997 8 лет назад

nice effort boss lady

@oluwadarebenjamin9709 9 месяцев назад

Gud Day Ma ☺️ amazing job 👏 a question plss do u replace the pm ic with a new one or thesame pm from the tap u replaced thanks.

@jenpau0269 8 лет назад

can have question?? where did you buy your flux gel?? thanks

@sponmagnet 8 лет назад

at what temperature you have set the heat gun at?

@martinlambev5866 8 лет назад

Very cool! Did you scavanger the "new" chip from another device or you buy a new one(from where)? Thank you!

@JessaJones 8 лет назад

+Мартин Ламбев new, dead PMIC means bad PMIC.

@hosseinm6752 8 лет назад

Always I'm in problem to changes bga ic which is protected by black glue in Apple products because when i try to remove the big ic like this must of the times I removed the pins from motherboard ...I don't know how to do it without damage the motherboard

@sponmagnet 8 лет назад

how you have built the pads, can you show us?

@teslasapple 8 лет назад

Jessa...thankyou for using your valuable time to make these videos. I wonder, have you tried, or know of any success using a profile with preheating to aid in lifting these underfilled ic's. Kind regards...Rik

@ibjessa 8 лет назад

If it wasn't such a pain to take out the iPad mini board from the back housing I would consider bottom heat. These chips are relatively small, so I generally don't.

@teslasapple 8 лет назад

Totally understandable. iPad 2's have under filled pmic, do you encounter the same problems with these? Easy to remove and preheat...thanks again.

@cellgirl8154 8 лет назад

what temperature did you use and for how long?

@jeena256 8 лет назад

What type of solder flux/ paste you using?

@MOHAMED-qh3px 8 лет назад

thank you

@JessaJones 8 лет назад

+Sofiane Mourad You're welcome!!

@geojor 7 лет назад

do all mobile phones have definite voltages produced by the power management ic, and if so, what are they? thank you ...

@geojor 7 лет назад

on a separate topic, why are there 11 pads on the logic board for a charge port when there are many less feeds from the cable ? thanks

@MrTacka007 6 лет назад

Hi jess I have a iPad mini no backlight and no repair pulled apart had a blown backlight diode. Replaced diode then shorts remove diode and boots up with no backlight . I’m just learning board repairs any help would be great Thanks Jason from Australia

@K4cK7788 8 лет назад

I just tried to replace an iPhone PMIC but i cannot clean my soldering tip from this adhesive/glue. How do you clean your tip after so much glue?

@davidkennedy4911 8 лет назад

Question on the microjumpers. I understand the concept but how do you know/determine which components to jump the lifted pads to and do you have a video for doing that?

@JessaJones 8 лет назад

Just follow the traces in the board

@NeutronX101 5 лет назад

What kind of schooling did you have to get to do this kind of work? Engineering? Thanks

@Morticor80 8 лет назад

I have a ipad 4 with same probem. Does not turn on, but when connected to the computer it goes directly into DFU Mode. Do you mean it could nevertheless the PMIC ? Ugly was that it turned on once. I didnt did anything for a few month and after that suddenly it showed me charging screen! But I guess the moment it was able to start it was dead as before. I tested it in another housing aswell, but there it didnt do anything... I hope you have an Idea for me... :)

@kevinkatz7027 8 лет назад

Your videos are awesome and so informative. I just gave this a shot but could not get the ic to release. I was at 450 on my station which usually does just fine on most, but the underfill on this bad boy is strong. It took 500 to finally get it to let loose. Looks like I only pulled one pad that goes to a filter cap (c8208). What awg wire do you use for your pad repair? Do you flatten the end out at all? I have 36 and 40 on hand, do I need smaller?

@JessaJones 8 лет назад

Ignore your station numbers and go by feel. You weren't anywhere close to 500 C

@sandracasey8690 7 лет назад

would you give it a shoot with an ipad i have? it has the same problem. would you be able to fix it?

@ejoy4609 6 лет назад

hi may i know what is the glue call ? is it epoxy glue ?

@keditimdola 6 лет назад

What kind glue for that?

@AppleBarbieri 3 года назад

Hola donde consigo esquemáticos ipad

@imrankan6880 8 лет назад

What kind of flux you are useing for this black glue?

@TheMilohemlock 8 лет назад

I was actually considering attempting this on my own, that is until I saw your video. Now, I'm happily running in the other direction. Thank you!!!!

@justpostwhatyoulike1833 8 лет назад

I hav ipad just like that 1 that don't tune on how do I know if it`s the chip ? many thanks

@DanPecha 6 лет назад

I did it yesterday best to get rid off black glue thing is heat and use needle glue will stick together and unglued from components and main board. :)

@TonyToneFixMyPhone 8 лет назад

Round of applause.

@expatkabayan6099 4 года назад

what is compatible pmic of ipad mini 1

@Azimjany 7 лет назад

thx, I think I have problems with my iPad mini 1 power ic, there is logo is and nothing else

@RupertHandford 8 лет назад

Did you rebball the pmic

@metalrob169 7 лет назад

i have an A1432 that is doing the same thing, it has NO power. i've tried a bunch of different chargers and other things that Apple has told me to do. .... what does this repair cost?

@xmenken1 5 лет назад

How much did you charge for this repair?

@TheHateuguys 7 лет назад

it would have been funny If the guy who gave you the tip was Orlando from Florida

@smartphonerepair6988 5 лет назад

ipad mini4 suddenly stopped working ???? connector on the board messed up ? any solution ?

@flaviohonorato 8 лет назад

muito top

@jemarjervoso2996 5 лет назад

hey can u help me with my ipad mini 4, its problem is wont turn on, wont charge wont reboot. how can i fix?

@JonnyFix 8 лет назад

I find this interesting as I haven't done much BGA rework so just wondering, do you not have to reball the chip for reliable connection? I guess you just wipe solder over the pads of chip and board and what little bumps that gives is enough? Nice job though, well done!

@ibjessa 8 лет назад

This question is really important. So I will ask you--think about the underlying problem. What is the cause? Is it that the chip itself is good, but has a cold solder joint on some of the balls? Or is the chip itself bad? What from the history would make you think one over the other? You could reball the existing chip, or you could install a new chip (with new balls already on it). What would make you choose one strategy over the other?

@JonnyFix 8 лет назад

+Jessa Jones Certainly the choice of action is key to the reliability of repair. I was really wondering if in this case you reballed the old one or just went for a quick fit to see if it was even going to work?

@ibjessa 8 лет назад

+Jonny Fix reballing a chip is only warranted if the underlying defect is suspected cold joints under the chip. This is unlikely in the case of a chip where the balls are protected and sealed to the chip with underfill. The only way that could be a possibility is if there was a bad drop. The video says this mini did not have a history of bad drop. This means the chip itself is dead. Reballing a dead chip will not bring it back to life. The only choice here is to replace the chip with a new chip.

@JonnyFix 8 лет назад

+Jessa Jones oh my apologies, when the text came up that said you pulled pmic from second iPad mini I thought you were using that ic in this repair rather than a new one. Either way I look forward to trying this type of repair one day :)

@NooreldenShashtari 8 лет назад

hi can you send to me what flux kind you use? it's look good kind and thank you

@JessaJones 8 лет назад

+Noor elden Shashtari I use ChipQuik 291, but a lot of other microsolderers hate it

@K4cK7788 8 лет назад

First great job! I really would like to see how you made this micro jumpers. I got a hard time trying to solder these tiny wires in place and when placing the chip they mess up very easily... How do you remove this dark yellow glue residue? its very sticky Which flux are you using?

@ibjessa 8 лет назад

Maybe I will try another one sometime--I'm sure I will pull pads again!

@K4cK7788 8 лет назад

+Jessa Jones That would be great! but how about the yellow glue residue on the board when cleaning pads. How do you remove it? It gets very sticky sometimes.. Which flux are you using?

@MichelPASTOR 8 лет назад

Very nice. I need to practice big chips SMD soldering. I tried once to replace a 100 pins TQFP but failed. Truth is I don't have the proper equipment. Without a good microscope you can't do much.

@JessaJones 8 лет назад

Get one! :) www.amazon.com/gp/product/B005MRAAR4/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B005MRAAR4&linkCode=as2&tag=rossmanngroup-20&linkId=8c3b94523f849afcbb9e232f303e4670

@MichelPASTOR 8 лет назад

I should, yes. Thank you for the link :)

@challahmanphilly 8 лет назад

Great video. Thank you. I have an iPhone 6 with power IC that gets real hot after some water damage. Is a very hot PMIC always sign of short and need to replace PMIC? Or can something else cause the hot PMIC?

@ibjessa 8 лет назад

Could be PMIC but more likely short is somewhere else

@TonyToneFixMyPhone 8 лет назад

+Jessa Jones So I freeze sprayed and see that the PMIC is the first place that gets hot ( 5S H20 damaged). So if there was a short somewhere else, it could still cause the PMIC to get hot???

@JessaJones 8 лет назад

+Tony Tone yes

@TonyToneFixMyPhone 8 лет назад

+iPad Rehab Thank you ! I figured this out the hard way. I tried to remove it and still got the short. I also am working on some other things where I find the whole string of caps is shorted. So I find the culprit and then the short jumps somewhere else; so I am guessing I have another short as well. Thank you thank you thank you for your reply means a lot to mean and I can learn alot from a simple yes or no : )

@JessaJones 8 лет назад

shorts are like a bad string of christmas lights. when one bulb is bad, the whole string is out.

@DianeMountford 8 лет назад

I have had this problem five times over the past year and a half (with an iPad Mini 1). Apple is done giving me replacement devices. Since a new iPad now costs $300, rather than $100, I'm at a loss. Do you know if there's a reliable model that doesn't have this issue? I'm willing to invest in a new machine, but not if I keep having these chips fail on me for no reason.

@baotony1662 8 лет назад

I have sent a customer to fix her dead Samsung S6(water damage and no power on), I hope you can help her on that. Her name is Robinson. She may call you today or tomorrow. By the way, what is the brand of your microscope? Thanks

@sgaleazzi 8 лет назад

Hi, i have a iPad 4 no power on and when i connect to iTunes shows Recovery mode but not turn on at all, the display all ways is off. When i try to restore iTunes show me the 4013 error. Thanks a lot i love your videos, Sebastián from Argentina!

@amatlense07 7 лет назад

what was wrong with it? did you solved the problem?

@ngsony5881 5 лет назад

Pls help me. My ipad mini doesnt turn on after i was install and update ios 12, after verifying its not responsive. Huhuhu what i need to do. If i charged it it doesn't response also.

@KaPuMkoO 6 лет назад

shiiitt!)) best repair girl)))

@Jimmylee314 7 лет назад

May i know how can u identify those dropped missing pads were (NC) non connector? I had bad experiences to dis solder Base Band ic with black tar gum, many pad was dropped when lifted up the ic. Please advice. Thank you..

@JessaJones 7 лет назад

Every missing pad that is important will show a torn trace, if not, it is NC. Zxwtool will confirm if you're not sure

@Jimmylee314 7 лет назад

Thanks for the reply, i had tried to practise transfer eprom ic (U6_RF) from death board to lock board, unlucky B3 (SPI_CS_L) and C3 (SPI_data_miso) were missing pad. Checked back it does not have any torn trace but tried to view schematic it has connections to Baseband IC.In this case is it consider as NC? Should I make a jumper to jump it directly to baseband ic A13(SPI_CS_L） and E14 (SPI_data_miso) ? Currently the board is no display, please advice.

@islamcoherencepertinence.7226 8 лет назад

How many temperature are you using please ? Why you don't show the jumps you made please ? Thanks.

@JessaJones 8 лет назад

The clip for that was deleted on my machine. I use whatever temperature feels right. I don't attempt to calculate the temperature

@islamcoherencepertinence.7226 8 лет назад

iPad Rehab Thank you. May be i didn't choose the right words to speak about temperature, so, i was talking about the calibration of your hot air gun ! I think its near 200°C

@JessaJones 8 лет назад

Well over 200C since solder doesn't melt at 200C, and I don't measure temperature, it is more art than science for practical board repair.

@hurryupeate 7 лет назад

I have an Ipad Mini (1) with black screen. It gets recognized on iTunes in DFU mode, I tried restoring it but gives me error and stopped because the ipad is not responding. (The screen never turned on) not even when restoring. Should I use this video as tutorial? or Is it a different problem? Thanks a lot for sharing your knowledge.

@amatlense07 7 лет назад

did u solved your problem? if so how?

@Lorenzo01x 8 лет назад

Hello my iPad mini gets hot when charging do you know what's the problem with it or can I get it fix ?

@JessaJones 8 лет назад

+lorenzo borja Heat = short. That can be pretty open ended, but iPad mini tends to get a short within the PMIC

@GameOn-li6qe 5 лет назад

Hi Jaessa I have an iPad mini it’s charging but no display not turning on and not detecting with iTunes or computer I tried everything even changing the battery but still nothing. May I ask what is the problem.???

@jamiemccallie2946 5 лет назад

Alex did u get a fix ?

@deoneranchavez9172 8 лет назад

wow

@proconsoles_nl 8 лет назад

I have an Ipad Air A1474 for repair from another repair company. The Ipad's digitizer was broken on the floor and suddenly at that time the Ipad was dead., could not be charged and was not recognized by Itunes. I received the Ipad stipped with a new digitizer to troubleshoot the problem. Lightning usb cable provided 4 Volt and this voltage was measured on 1 of the copper pads at the other side of the mobo underneath the power IC chip. However the battery did not get charged and I measured 2.8V on the battery (while voltage written on the battery is 3.7V). My questions are: - do you suspect the power IC chip (does not get hot while when only charging cable and battery (with wires) was connected to the mobo). - when you do suspect the power IC chip, can it be solved by reflowing the power IC chip ? Or do you advise, just replace it by a new one ? Or do you think I need to do more troubleshooting first by measuring all the power rails first with the schematics and the test link drawing program ?

@JessaJones 8 лет назад

stop this reflow bS!

@proconsoles_nl 8 лет назад

+iPad Rehab I also thought so that the problem will not be solved with a reflow. do you advise the ic chip to be replaced. chip does not get Hot with only battery and charging cable installed.

@JessaJones 8 лет назад

i wouldn't attempt to replace the iPad Air PMIC unless I had a much stronger reason. That is a $40 chip!

@proconsoles_nl 8 лет назад

I was also thinking that, need to find out which points to check to really prove that it is the power management IC chip, which is defective. It's an expensive chip indeed, but with removing the chip in a not so proper way, can make it even more expensive. Thanks for your responses.

@proconsoles_nl 8 лет назад

Tested the battery first with a mobo from A1475 Ipad Air and is working, battery will be charged up to 4.07V. Also with the fully charged battery from the A1475, nothing happens, Ipad does not start up. Nothing recognized in Itunes also. But the working A1475 mobo with the battery from A1474, does get recognized in Itunes. Measured all the components in between the battery and power IC and all have the correct values. Measured and compared all the test points underneath the power IC (are identical) from A1475 and A1474 mobo with only lighting usb connected and I see huge differences. Especially the PPVBUS_PROT which is 4V at A1474 mobo and 5V at A1475. Measured again at the lighting adapter female plug, also 4.0V and 5.0V. So I almost concluded that it is the power IC chip. But I do think it is strange that the power IC chip only gets 4.0V on the A1474 mobo (which does not start up) and gets 5.0V on the A1475 mobo (which is working). Do you know the minimum voltage the power IC needs, in order to work correctly ?

@LovaticStaystrong-ir2sq 7 лет назад

the Apple logo is on. it won't show the screen. please help me.

@KG-Handy-Store 8 лет назад

which flux use you

@JessaJones 8 лет назад

+Kenan Aydogan Amtech 559, none of that chipquik junk

@30kenton 8 лет назад

i also have an ipad mini that does not turn on .what price would it cost to fix thanks

@JessaJones 8 лет назад

+KGP VLOG With the cost of the chip and the time/risk of this repair, we recommend buying a new mini

@30kenton 8 лет назад

ok thank you,any u suggestion as to why the ipad no longer works thanks

@harisjayaraaj519 6 лет назад

i need cercuit for ipad min ... not turn on my ipad mini and not charging ....

@JessaJones 6 лет назад

Post DIY repair questions by subscribing to our new forum: forum.mendonipadrehab.com

@powertripper888 8 лет назад

What type of flux do you use?

@JessaJones 8 лет назад

+Nathan Snapper amtech 559 none of that chipquik shit

@powertripper888 8 лет назад

Thank you.

@rtlaptopartes26 8 лет назад

hello more or less the charge for the repair

@JessaJones 8 лет назад

+Ricardo Torres Flores This repair is a pain in the ass. It makes more sense to just buy a new iPad mini.

@YOUandMeRealtyDotCom 8 лет назад

+iPad Rehab Same iPad Mini Problem after Charging. My Last Mini I Believe with this being so prevalent. My mini is 128G & Cost Close To $1000, Does Apple Do This Repair or Can New Board be Installed? Great Video with Close-Up view and Audio Narration Comments, Thanks! Walt

@k323r 8 лет назад

nice job .dont think apple will like it.they tend to put potting compound on ics so make it impossible to repair so then they sell ya a new board.

@abduljabarabdulla6509 8 лет назад

hi how are you i wont contact with you

@harisjayaraaj519 6 лет назад

@beyondrepair8112 8 лет назад

maam i m d first 1 to watch ur video.i m from INDIA.

@VINAYKUMAR-fn8gg 6 лет назад

It just means Apple doesn't want to produce repairable products...

@Wolfe123 8 лет назад

WHY YOU USE USE IT FOR SO LONG AND IT BLACKS OUT FROM TEMPERATURE!!

@TonzaFin 8 лет назад

u change the motherboard at 9:54

@JessaJones 8 лет назад

I did a bunch of mini PMIC chips that day. They are all the same. The iPad at the beginning is the same as the iPad at the end. The others were just practice donor boards. I never placed a new chip on them. Not sure if the clips I used here from the pulling chip and then pad clean up are all from that same mini or one of the donor boards, I just chose the best view since on some the chip was not under the microscope the whole time. this one had three microjumpers, and I didn't get a clip of putting the microjumpers in for the missing pads :( Just happy that this repair worked. I have had it in my pile since May!