I just found your channel because I was searching how to recover data from an iPhone. I watched three of your videos all the way through and felt so satisfied watching you problem shoot and fix the issue.
Great job using human logic, schematic, and multi-meter. Great to see this done on modern hi-density circuit boards. I used to do this on old tube equipment when you could get schematics from SAMS. All functional logic knowing what is supposed to happen in different parts to the electronics.
Awesome video. Just wanted to point out that those small capacitors (220 pF) play an important role as they are decoupling capacitors that short high frequency noise to GND. Yes everything will work fine without them but if you ever get noise in that line you are going to fry whatever is connected on that line. I would place those caps back just to be cautious.
Hi At last found the logic denomination of what you are...I am Marcel, my hobby is electronics repairs, and You are for me , and you shoud be for a lot of us, the amateurs, THE QUEEN OF ELECTRONICS REPAIR. Thanck you for all this repair videos.
Can never get tired or fast Farzard Jessa’s vids every single details are million dollar worth cos not only we can use this on iPhones but on any electronic repair
You are the best n you are a moving technical college. Your instructions help us all viewers. You are just one in the world n anyone can understand wen you talk about a problem n how to diagnose n fix it
I am certainly glad to have a channel on UA-cam like like yours.. I catch myself watching and watching. Instead of surfing now. Spent the last 35 yearsand in our county in state you have to be certified master technician for seven different things to be able to hold license here. Electronics is one of them.I'm just so staggered watching you fix something. That one got to me 😂.keep up the awesome work in I'll be watching you and throw in a comment every once in awhile if you don't know something.. 👍
I became a radio tech back in sixties with tubes and transistors. I moved into IC but what you can do with a microscope and flux puts me in awe of your skills. 73 and keep it up, KW7YZ.
LUV your vids...finally a passionate person that knows their shiot! Way beyond my tinkering aspects, great to have a ninja in our corner, that documents the battle.
You have 2 qualities that rarely go together. You are extremely intelligent and have this way of explaining things that average everyday Joes like me can understand. The other thing that I love is your process of diagnosing. Sometimes you have to use common sense and logic BEFORE pulling out the test equipment and schematics. Keep on keepin on.
MULTIMETER!!!! Winner winner chicken dinner! I would be lost without mine. I troubleshoot HVAC boards and associated components in my business but am fascinated by your work with phones and really enjoy learning about what makes them tick... I consider sucessfull troubleshooting to be a fine art requiring imagination (where is the schematic?) and experience in knowing the path and walking the path..... great video! :-)
I love your videos Jessa! I appreciate the explanations on how to read the schematics as well. One day when I head to New York, I've got to come and meet you.
Very nicely done young lady. I love your description of filters vs. inductors. Great way to explain basic old school trouble shooting on the video circuit. Too old with shakey hands to do any surface mount work here so that brings a great appreciation for you skills. Thanks for sharing.
I love this stuff. The videos here kinda feel like the yin to Rossmann's yang. Not saying either is wrong or right, good or bad, but the approach to almost everything, is very different. I firmly believe, that with the repositories of both available, and the will to put in the work - _anyone_ with two reasonably stable hands and at least one eye (but preferably two) - can learn to do this.
Those filters "that don't act like coils" appear to form a common mode choke filter. That would make sense on a differential input like that video chip is using. Excellent video and teaching.
@ time 11:24: More than likely. at one point in time, the development team were working off of spec, and not actual hardware. i.e. they were using a similar LCD panel for testing purposes, and not the final product panel, and using this small circuit as a sort of "disposable" adapter to test the board. Once they were able to test with the actual end-product panel, this circuit would have been removed from from the pick-n-place program. (less costly than rebatching all the boards, and less costly than having design engineers layout a new board design just to omit this development circuit) This sort of thing is common practice, if you've ever pulled a complex board from just about any device (phone, computer, that one unique gift idea from ebay.cn) You'll find quite a lot of non-populated areas, and even whole circuits. This is also used to differentiate "models" or teired of the same product. I.E. If one phone has 64gb of SDRAM, and the cheaper model only has 32gb, with no other discernible difference, you can bet your bottom dollar they will use the same board, and simply de-populate that extra SDRAM circuit. It's cost effective.
Hey Jessa, I have the same Multimeter and you can turn off the automatic power off if you hold down the „Range“ button and then hold the power button. It beeps 5 times and then it won‘t power off automatically again
Brilhante video... I loved electronics when I was young and lived in London... Saying that I don't use iPhone but I do have a 5se new that has bean given to me and I may try somo of your tips one day...
How do these (or the other, singular) filters work in terms of diagnostics? I've tried probing some of them, but never get the resistance value spec'ed in the schematics. So maybe that's not how they work, or I'm misinterpreting their spec/function? How do I go about diagnosing one, to tell if it's good or not?
Great video.. And will you please help me to get back my iPhone 8 Plus which was damaged at NAND position while upgrading its memory to 256gb.. I lost few connections while removing 64gb Nand. Thanks in advance
Muy bueno. Gracias!!! En realidad lo que aprecio de sus reparaciones. es el enfoque. el leer entre líneas que es lo que debe aprender a hacer un tecnico en reparaciones, además de contar con el equipamiento adecuado por supuesto. Me interesa mucho aprender su método de enfoque, allí yo creo está todo el secreto de reparar cosas.
When doing this video you should have also checked between the 3 pins for continuity after replacing the choke (as you know it’s very easy to bridge the pads at the inductor)
Do you work on LG5 phones ? I dropped mine in an irrigation ditch, and found it 2 weeks later. It has 3500 pictures I didn't back up. Lots of trucking pictures of the USA.
Im waiting for that video on the hombutton on the iphone 7's, which you said is unrestorable .. But i was under the impression you had found a way though since you said you'd makea video on it once back from vaca? Still waiting..
Are you able to get into an iPhone for which I've forgotten my passcode, it's an iPhone 3GS, I swapped to a 5S when it came out and found i forgot my stupidly long text password when I went to sync some photos over
Hi, I have a problem with my iPad Pro 12.9 (A1652). Symptoms include repeated reboots and 1% battery after power is turned on. And when you start charging, it's marked as normal percent again. Do you happen to know how to handle this?
Please I’m new to iphone board repair. I would love to learn how to read Zxw and schematic diagram. I managed to learn how to fix without this knowledge
I just found your channel because I was searching how to recover data from an iPhone. I watched three of your videos all the way through and felt so satisfied watching you problem shoot and fix the issue.
I love Jessa. She has the greatest attitude.
Great job using human logic, schematic, and multi-meter. Great to see this done on modern hi-density circuit boards. I used to do this on old tube equipment when you could get schematics from SAMS. All functional logic knowing what is supposed to happen in different parts to the electronics.
Thanks for this service to the community!!
Awesome video. Just wanted to point out that those small capacitors (220 pF) play an important role as they are decoupling capacitors that short high frequency noise to GND. Yes everything will work fine without them but if you ever get noise in that line you are going to fry whatever is connected on that line. I would place those caps back just to be cautious.
Hi
At last found the logic denomination of what you are...I am Marcel, my hobby is electronics repairs, and You are for me , and you shoud be for a lot of us, the amateurs, THE QUEEN OF ELECTRONICS REPAIR.
Thanck you for all this repair videos.
Can never get tired or fast Farzard Jessa’s vids every single details are million dollar worth cos not only we can use this on iPhones but on any electronic repair
You are the best n you are a moving technical college. Your instructions help us all viewers. You are just one in the world n anyone can understand wen you talk about a problem n how to diagnose n fix it
I am certainly glad to have a channel on UA-cam like like yours.. I catch myself watching and watching. Instead of surfing now. Spent the last 35 yearsand in our county in state you have to be certified master technician for seven different things to be able to hold license here. Electronics is one of them.I'm just so staggered watching you fix something. That one got to me 😂.keep up the awesome work in I'll be watching you and throw in a comment every once in awhile if you don't know something.. 👍
I became a radio tech back in sixties with tubes and transistors. I moved into IC but what you can do with a microscope and flux puts me in awe of your skills. 73 and keep it up, KW7YZ.
You sure you're still alive?
LUV your vids...finally a passionate person that knows their shiot! Way beyond my tinkering aspects, great to have a ninja in our corner, that documents the battle.
Well Said, Michael!!
You are a brilliant instructor very enjoyable to watch - and of course, learn.
Everytime i see your videos i learn somthing new thanks from morocco casablanca
You have 2 qualities that rarely go together. You are extremely intelligent and have this way of explaining things that average everyday Joes like me can understand. The other thing that I love is your process of diagnosing. Sometimes you have to use common sense and logic BEFORE pulling out the test equipment and schematics. Keep on keepin on.
Thanks Steve!
MULTIMETER!!!! Winner winner chicken dinner! I would be lost without mine. I troubleshoot HVAC boards and associated components in my business but am fascinated by your work with phones and really enjoy learning about what makes them tick... I consider sucessfull troubleshooting to be a fine art requiring imagination (where is the schematic?) and experience in knowing the path and walking the path..... great video! :-)
Such a real honestly
Excellent job i never ever miss your every video i learn many thing from this video LOVE YOU REHAB
Excellent skills and very well explained. Thank you for your videos.
Great commentary while repairing, trully helpfull information from start to finish of the video, thank you!
I really respect you and the way you give a free service and knowledge to the people, goo ahead sister
I love your videos Jessa! I appreciate the explanations on how to read the schematics as well. One day when I head to New York, I've got to come and meet you.
Bravo. Im not personally an "Iphone person" per say, but your videos are always so packed with info.
Thank you for your insight.
Very nicely done young lady. I love your description of filters vs. inductors. Great way to explain basic old school trouble shooting on the video circuit. Too old with shakey hands to do any surface mount work here so that brings a great appreciation for you skills. Thanks for sharing.
I love this stuff. The videos here kinda feel like the yin to Rossmann's yang. Not saying either is wrong or right, good or bad, but the approach to almost everything, is very different. I firmly believe, that with the repositories of both available, and the will to put in the work - _anyone_ with two reasonably stable hands and at least one eye (but preferably two) - can learn to do this.
I'm not very techie and these repairs are certainly above my pay grade, but its a pleasure to see "Jessa"? at work
Fabulous instruction hands down one of the best instructors I've ever watched. Great work!
Those filters "that don't act like coils" appear to form a common mode choke filter. That would make sense on a differential input like that video chip is using. Excellent video and teaching.
Thank you for teaching, your way it's very interesting Love the way you do it
@ time 11:24:
More than likely. at one point in time, the development team were working off of spec, and not actual hardware. i.e. they were using a similar LCD panel for testing purposes, and not the final product panel, and using this small circuit as a sort of "disposable" adapter to test the board. Once they were able to test with the actual end-product panel, this circuit would have been removed from from the pick-n-place program. (less costly than rebatching all the boards, and less costly than having design engineers layout a new board design just to omit this development circuit)
This sort of thing is common practice, if you've ever pulled a complex board from just about any device (phone, computer, that one unique gift idea from ebay.cn) You'll find quite a lot of non-populated areas, and even whole circuits.
This is also used to differentiate "models" or teired of the same product. I.E. If one phone has 64gb of SDRAM, and the cheaper model only has 32gb, with no other discernible difference, you can bet your bottom dollar they will use the same board, and simply de-populate that extra SDRAM circuit. It's cost effective.
Magnificent!!!!!! Love what your doing. I'm coming for training.
Hey Jessa, I have the same Multimeter and you can turn off the automatic power off if you hold down the „Range“ button and then hold the power button. It beeps 5 times and then it won‘t power off automatically again
You are doing Great i always admire your technical analogy and troubleshooting.
So much love from morocco, thank you do much
thanks for this video it really helped me because i fixed the iphone xs max no image problem...
Please explain things like what is the liquid you put on when replacing the filter. Is it a flux ?
Yes
Hello I'm Emerson, I'm a phone Repairer. I love Your video and hope to see more of it
really enjoy your videos, good diagnostics. 3500 miles is a long way to go to repair school
We could use these steps every time ?
Thank you for taking your time to explain. Kind regards
Excellent job, thanks for the education
wow! Brilliant video. Absolute pleasure to watch.
Thanks Jessa! Yep, a DMM is #1 on the need list for electronics!
GREAT video. Love the strategy and the thinking here.
Can we connect it directly without the chokes?
Thanks a lot. Keep it up. Very dedicated work
I adore the problem solving.
Jessa you are the best thank you
If you dont have another working phone, you can use i bridge to see the value of pin´s conector right?
Pretty cool! Love this, you are an excellent teacher!!!
Brilhante video... I loved electronics when I was young and lived in London... Saying that I don't use iPhone but I do have a 5se new that has bean given to me and I may try somo of your tips one day...
How do these (or the other, singular) filters work in terms of diagnostics? I've tried probing some of them, but never get the resistance value spec'ed in the schematics. So maybe that's not how they work, or I'm misinterpreting their spec/function? How do I go about diagnosing one, to tell if it's good or not?
Great video.. And will you please help me to get back my iPhone 8 Plus which was damaged at NAND position while upgrading its memory to 256gb.. I lost few connections while removing 64gb Nand. Thanks in advance
Love this soooo much. We must fix our stuff! just like all the other countries do.
Wow Excellent video as Always ..
Excellent Jessa
very informative. crystal clear! thank you for sharing.
just wondering why no ESD gloves on? maybe on ESD mat?
Muy bueno. Gracias!!! En realidad lo que aprecio de sus reparaciones. es el enfoque. el leer entre líneas que es lo que debe aprender a hacer un tecnico en reparaciones, además de contar con el equipamiento adecuado por supuesto. Me interesa mucho aprender su método de enfoque, allí yo creo está todo el secreto de reparar cosas.
where can i find the schematic program and schematics you use? Is this a service I can purchase?
Absolutely awesome video!
Jessa you are Best thank you
When doing this video you should have also checked between the 3 pins for continuity after replacing the choke (as you know it’s very easy to bridge the pads at the inductor)
The grape analogy was spot on
You need more flux. Ask Louis Rossmann
This needs more upvotes
It depends. Do you sell flux? If so, needs more flux.
@@br1ckbr3ak3r Sir this is UA-cam.
220PF may be small, but it's better at cleaning RF from that line than an electrolytic.
where can I buy this app? please link
Wow awesome detective work!
You are the best n thanks for the video
Jesse, you are amazing!
Do you work on LG5 phones ? I dropped mine in an irrigation ditch, and found it 2 weeks later. It has 3500 pictures I didn't back up. Lots of trucking pictures of the USA.
Thats really cool thanks for sharing your tester keeps beeping
thats amaaaaazing!!!!!!!!! brilliant reasoning!!!!
Thanks for this, just found your channel
just love how you do this stuff :)
Thanks for the education of iPhone 👍
I have the same multimeter but not the same factory... I like it... so useful
hey jessa please stop being awesome
I think might mean "Ctrl X , Ctrl V", unless you have your replicator up and running. Just sayin. Love your channel!
lol!!! Love this comment :) 22:38
great video as always,keep it up
Im waiting for that video on the hombutton on the iphone 7's, which you said is unrestorable .. But i was under the impression you had found a way though since you said you'd makea video on it once back from vaca? Still waiting..
You are the best thanks a lot
thank you teacher your great ❤️
I LIKE YOUR JOB
Thank you very much for this effort
multimeter is a way smarter than genius bar and more useful
Are you able to get into an iPhone for which I've forgotten my passcode, it's an iPhone 3GS, I swapped to a 5S when it came out and found i forgot my stupidly long text password when I went to sync some photos over
So how do i find such a filter? pllz help me i've got excactly te same problem.
Amazing work!
Hi, I have a problem with my iPad Pro 12.9 (A1652).
Symptoms include repeated reboots and 1% battery after power is turned on. And when you start charging, it's marked as normal percent again.
Do you happen to know how to handle this?
You are a Genius, Girl.
Great video.
what flux do you use for reflow soldering?
Please I’m new to iphone board repair. I would love to learn how to read Zxw and schematic diagram. I managed to learn how to fix without this knowledge
another great video thank you.
How cool 😎 working on iPhone X’s Max
great video, amazing !!!
Hi wie geht’s dir welche Programme benutzt du für Informationen
can we jumper for test
Great work
love all 7 of my multimeters too
Why do I find this so entertaining?