How iPhone X Boot Circuit Works | REWA Academy Logic Board Repair Online Course

This week REWA will walk you through the work-flow of iPhone X Boot Circuit. The boot circuit can be regarded as logic board trigger circuit. To have the phone turned on, working conditions like power supply, clock signal and reset signal are indispensable. What’s more, CPU has to get key components into power-on self-test process and get the bootstrap imported. Since there are so many components involved in the process, reasons for won’t turn on of the phone can also be various.
iPhone Logic Board Repair Work Flow & Troubleshooting Online Course: bit.ly/3ejmLfY
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[@rewatechnology2008]

For more course information , please check bit.ly/3ejmLfY
Q&A with REWA Team, please like and stay tuned to our FaceBook page: REWA Technology ( bit.ly/3agYFha )

[@mudassariqbal6880]

When your next video is coming????

[@eliasellis6795]

I know im randomly asking but does anyone know of a way to log back into an instagram account??
I stupidly lost the password. I appreciate any tips you can offer me

[@musaenoch2277]

@Elias Ellis instablaster ;)

[@eliasellis6795]

@Musa Enoch i really appreciate your reply. I got to the site through google and im waiting for the hacking stuff atm.
Looks like it's gonna take quite some time so I will get back to you later with my results.

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@Musa Enoch it worked and I now got access to my account again. I am so happy:D
Thanks so much you saved my ass!

[@PhuketMyMac]

World is going mad but Rewa finds a way to make it a little bit better. Looking forward to it.

[@rewatechnology2008]

Thanks for your kindly support! We will keep up our work :)

[@technicalpoint306]

Please help me to get a job at mobile servicing 🙏

[@rdp8545]

Well done. This has to be one of the first video's I've seen that actually goes through the steps of a schematic on an iPhone board. These sorts of instructions are invaluable and helps people understand what each chip and bus line does. Great job!

[@wintutorials2282]

REWA, thanks for making this video. REWA is truly one of the best companies in the world.

[@rewatechnology2008]

Thanks for your support :) We will keep work!

[@techneglankaschool7872]

this is the first video to explain iphone .. good luck reva. thanks

[@Xclub40X]

Rewa-ing our circuits... Rewarding our life... Loving our phones,
Now to fix a smashed up XS Max.... Thanks for your help.... Can I use your videos as a reference on my channel please?

[@saminajjar5767]

So much respect REWA Technology !! You guys deserve it ..

[@laminelayaida2019]

Thanks for the explanation. Youade it very simple to understand. I repair MacBooks and notebooks and I understood very easily your explanation. Thanks a lot

[@rewatechnology2008]

Thanks for your feedback on our content.
Hope you can get some enlightenment from it :)

[@h4cl3s79]

Cám ơn bạn, Rewa, vì những gì các bạn đã và đang làm lúc này... Điều này thật sự rất tuyệt với tôi và những người đam mê công nghệ. Một lần nữa cám ơn các bạn.

[@x-tron3737]

Service To Mankind Is Service To God.
Thanks ♥️

[@phony_fr]

Learn most of your course simply on my bed and you learn me crazy stuff literally

[@samanazeez-cv3js]

Real useful Thans REWA Technology you are the best one.

[@sharfazhameed6382]

Rewa is on another level. Their engineering brains n explanations are on point. Thanks a lot for all the informations.

[@tlnwuibu9777]

thank you. It was above all awesome. I hope you guys can make more videos like this. It is really very helpful.

[@ramialsayed2325]

Thank you so much.. you are perfect..
I hope you to continue sharing these perfect information with us..
I will be your student the first chance i had..
thanks from the heart

[@mrOga]

Thanks but can also include images of the components us you explain or draw current lines directly on the mortherboard,

[@rewatechnology2008]

Thanks for your feedback :)

[@marlonglodo1930]

Hi there rewa team.... iam so excited...

[@aminkhosravi9199]

very good. tanks Rewa

[@NovaEmotion]

thank you , very useful information and easy to understand explanation especially for beginner repairers, please make more videos like this with circuit and diagrams

[@gandalfdergraue8444]

Thanks a lot for this Introduction... Perfect entry in the world of repair, especially, if you want to know or be able to fix ,,dead'' mainboards and your area doesn't really provide you the help (like training courses or schools) you need...👍👍

[@smartfingerprint8776]

Rewa is a excellent

[@mironcheff]

More interesting! Thanks for this video.

[@bihariswag7301]

Love from India bro excellence work..🙏🙏🙏

[@abedsaleh2406]

Thank you Rewa, informative video and easy to learn, we appreciate what you are doing.

[@josephineoredi4851]

I have managed to work out this crazy floating thing.

[@mrOga]

We are waiting Rewa

[@Peyami86]

That is very generous. Thank u REWA 👍

[@gurpalsingh5768]

Cheers for this awesome post .I finally got an excellent result will this lovely method when I tried it.I am enjoying it now

[@hassantariq1741]

good job

[@khatommy9378]

Wow.verry good.the clip REWA amazing.Thanks so much

[@adriann2005]

Thanks man! Works without any problems!

[@rillsali5394]

fantastic 💯💯💯👌👌👌 thanks for very informative teaching . i hope someday i may have a chance to be one of your Lucky Students. more power REWA it’s really help a lot. ❤❤❤❤

[@alright272]

Love your videos! Can you please replace the cpu in a Mac mini?

[@kennyjacob4101]

Keep up your good work Rewa team. You should make more study tutorial videos.

[@rewatechnology2008]

Thanks for support and pls stay tuned to us for more contents :)

[@namanhtran5339]

Thank you so much.. you are perfect..
From VIET NAM WITH LOVE

[@CtrlHelp]

Nice Work REWA TEAM

[@sajadahmad2935]

Rewa iz no 1😊

[@SajidKhan-xp9sm]

World number one video u r real trainer

[@xocorox9402]

Los felicito por su trabajo, muy buena explicación y muy detallada

[@rewatechnology2008]

¡Muchas gracias!

[@mahmoudtrabaie2971]

THANK YOU FOR YOUR EXPLAINING HOW THE MOBILE MAKING BOOT BUT COULD YOU PLEASE ADDING THIS PROCESS ON THE CIRCUIT DIAGRAM OF THE MAIN BOARD, WITH MY RESPECT FOR YOUR EFFORTS.

[@rewatechnology2008]

Thanks for your suggestion :)

[@sudhiptameher4577]

I..love rewa technlogy

[@rokasbravo9714]

i enjoyed learning,and understanding, how its flow

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Thank u from iraq ,good gob

[@juanacostasereno6074]

Un millón de gracias, saludos desde Colombia, su fiel seguidor espero algún día poder ir a visitar sus instalaciones.

[@rewatechnology2008]

Thanks for your kindly support!

[@thaerthaer4453]

Best channel ever

[@janakkothari4003]

exilant explanation

[@chrisjohnsonnagbe775]

Pls are you offering online course

[@liboy34]

Hi rewa
very thank's for this educational videos.

[@rewatechnology2008]

Hope you can get some enlightenment from it :)

[@jitupatel1862]

Are rewa 👌🏻👌🏻👍🏻👍🏻

[@anytimemobileservices9272]

Great work guys and thanks a lot

[@juancordoba8759]

MUCHAS GRACIAS,POR ENSEÑARNOS ESE PASO A PASO.
Y DEDICARNOS TIEMPO VALIOSO PARA ENSEÑAR ,NO SABEN LO VALIOSO QUE ES PARA MI ESE TIPO DE CURSO.
BENDICIONES......

[@rewatechnology2008]

We do appreciate your recognition of our efforts.
¡Muchas gracias!

[@kingrock6128]

Thank you for your free lesson I love your videos

[@avirk6401]

I got devices current swing between
0 to .07
Amp mostly I found I2C lines has problem but sometimes even 12C lines are okay issues still exist what else is the reason of that current swing
While power supply connected if I touch multimeter pin to take reading of nand reset 1.8 V
Current swing stops and device goes to dfu I tried to restore but eventually it gave error 4013
kindly let me know a proper solution
Thanks in advance

[@bvbist]

Remove the nand and restore it with itunes if its stuck on waiting its relate to cpu if 4013 happened its bad nand

[@ivanpineda7871]

Ali Virk Sepárate and Solder Again with ch5 preheater.

[@avirk6401]

mehrdad SL thanks for answering but it’s not a solution I’ve issue with voltage swing that problem occurs when bus or data lines from CPU to motherboard stops communicating i just wanted to know which line and what is a proper solution

[@purnasapkota3679]

Hi rewa team.... iam so excited.

[@imranosman210]

Thank you team Rewa

[@thomasamani6276]

Good job ,thank you

[@wucollins1727]

I wish you guys could post the charging circuit video 😢

[@OnYourSquare]

Is that Vincent doing the voice-over? Great to job .

[@rewatechnology2008]

Yes! Thanks for your watching :)

[@lalarepairservices1872]

I lear it a lot and i am also interested to be part of REWA technology

[@poyuco30]

Could you put a link where you can download the photos of the class block diagram and download those files thanks

[@rewatechnology2008]

Please check this link ( www.refoxteam.com/ ) as a reference :)

[@aarepairgent908]

@@rewatechnology2008 refox have diode values?

[@dimpalbalaji9734]

Good work 👍

[@gassanali8667]

thank you REWA for the free content. it's gonna help a lot. but the background music is a cause for distraction. music isn't suitable for education videos

[@rewatechnology2008]

Thanks for your feedback :)

[@robertoatsoc1971]

SIMPLESMENTE MUITO GRATO POR ESSAS INFORMAÇÕES VALIOSAS, MUITO OBRIGADO GRUPO REWA DEUS ABENÇOE A TODOS. SAUDAÇÕES DO BRASIL

[@massimilianobarresi.]

Thanks very much for the video course.. i like to see the others.. it's possible to have the powerpoint file? Appreciate!

[@nectarshrestha31]

Sorry i am confuse now
Does Reset signal from PMU to CPU or CPU to PMU make me clear.

[@zufat4714]

Miss Nectar Shrestha CPU to PMU

[@nectarshrestha31]

But in this digram it shows that reset signal come from pmu to cpu. Thanks buddy

[@farhans2650]

Which software using for schematics

[@rewatechnology2008]

farhan s hi, you can check refox on refoxteam.com, a free schematics

[@farhans2650]

@@rewatechnology2008 thankyou

[@notonemaulani6466]

Android and iPhone systems are almost the same. I think different. thanks for the knowledge

[@sisok40]

thank you very much!!

[@rizwanshaa]

best vedio. got good information. superb

[@PM-le2di]

Sir pls ans, iPhone x boot prosses is same in android.mi,opoo, samsung.?

[@yusufqureshy9058]

very useful
thxxx so much

[@towfiqhasanmiah8142]

Could you tell me how much cost for iPhone motherboard repaire pls

[@gtrepairapple1822]

thanks you rewa very nice explanation..

[@sudhiptameher4577]

Reali amazing

[@Chembetiadiseshu]

Explain Good

[@ШохрухХасанов-ш3г]

Perfect thank you rewa ))))

[@kailashmobilerepair2695]

Thanx Rewa 🙏🏻

[@FDoneDay]

Very thanks

[@sarfrazahmed9456]

You are great. Thank you for very knowledgeable videos. 🙏

[@youssefabasalah4285]

شكرا جزيلا لك ننتظر من المزيد

[@DeepakVerma-jt6vm]

I have checked your videos on your site the videos are only of iphone 6 and 7 what about other models and there videos. Plz make price little low $399 is to much from my side

[@rewatechnology2008]

Thanks for your interest. The course package is renewable and you can access all newly-added courses in the package free of charge within the validity period.
The course of other models will be uploaded continuously, please stay tuned to us :)

[@syed3887]

I have I phone x volume down button not working I try to replace the flex cable still the same issue can u plz help me to guide how I can find the voulme down key connection on board to make
jumper to solve the problem.

[@СафаМамедов-ь4п]

Thanks 👍

[@allaoui38]

I don’t understand , why the voltage stop before the mosfet , why he can’t pass through body diode of the mosfet ?

[@luciferx1636]

Nice . It's good learn. Thanks a lot.

[@rewatechnology2008]

Thanks for watching and hope it could be some reference for you :)

[@FDoneDay]

Respect rewa

[@johnm4962]

Thank you.

[@hodarjmj8939]

Amazing ! Thank you.

[@Karanjangra856]

very good information, thanku, you give training online ???

[@rewatechnology2008]

Yes, REWA Academy has been launched.
Welcome to visit academy.rewa.tech for experiencing free case course.
Thanks for your support :)

[@POSITIVE7861]

very nice explained .i like ur teaching

[@rewatechnology2008]

Thanks for your feedback!

[@Shm991]

We are waiting for next class

[@sajadahmad2935]

Awsom.......👍

[@michaelmelech842]

Hi from Austria!
I was reballing two halfs of the logic board from iPhone XS Max when boot on the pow dc went until 0.12A and after 10 seconds trying to boot again but it’s again stops at 0.12A could it be pp1v1_s2 ? on the Multimeter diode mode checked 0.007 readings
Any ideas? Regards mick

[@goutammondal3167]

I am interested your class. Cast?

[@nawazsheikh3515]

Bro iPhone x battery connector points damage solution plz help

[@juancarlosmedina3328]

muy bueno gracias desde mexico saludos

[@mensahrobert4925]

Please I need explanation on this problem. iPhone motherboard will be connected to DC power supply, when power button is press, on the DC power supply you will see that it's booting but no Apple logo then the power will drop to zero then it will start again. ( It will be reading on the DC power supply like this when the power button is press 57,80,98,120,221 amhs) this is how it will be reading on the power supply then it will start the same process again but in the process NO APPLE LOGO. Please help me with this problem

[@murattoforyou7184]

thanks rewa

[@mortezaafzal3422]

yor are best

[@shaing7532]

is that repair book is available?

[@deepakrai4832]

Waiting another part