How To Fix Samsung A70 Won't Turn On - Motherboard Repair Course

How To Fix Samsung A70 Won't Turn On - Motherboard Repair Course.
Samsung A70 won’t turn on. We test the current and it is over-current. By means of coating rosin, we find out that the Power Management IC(PMIC) has been damaged. Replace it with a new one and problem
solved.

[@paulmendes9315]

The most detailed and informative repairs video you will ever find anywhere on KZbin. Thank you.

[@CINOTechnology]

thank you

[@rockyvlog4087]

Best gsm hardware trouble shootings and repair.......nice.....we learn a lot.....!

[@xnyoplex9420]

I was always watch your vedios: )" nice performance sir i am from myanmar❣❣❣❣

[@artbelchanneleng755]

good work thank you. Now i know content for my channel)) I'm learning with your videos

[@CINOTechnology]

Thank you

[@danielbassa]

Thank you very much from Spain. New subscriver.

[@CINOTechnology]

No te agradezcas

[@diyfixtool830]

Your work is very useful! like your video, thanks for sharing.

[@terryvery3646]

Such a genius! I wish there was a way you could repair mine. I don't want to lose my data.

[@gsmsindh]

Nice work sir your videos are informative fir us keep it up love from Pakistan

[@CINOTechnology]

کوئی بات نہيں

[@amyrobinleonard7363]

Very good video.Thank you for sharing knowledge.

[@tohidullakhan]

Thank u so much. Nice explanation

[@coldspring22]

Great job! Thank you for that wonderful repair video. I noticed you didn't put the emi shield back on after the repair. Is that ok? If emi shield is of not much use, I would just remove all of it from a motheroard to make repair easier.

[@ahmadmalek4031]

nice work .. Thanks 💐

[@AzadKhan-kd6mz]

Great job sir👍👍👍❤️❤️❤️

[@akstatus6771]

Nyc work love from india

[@CINOTechnology]

Hi

[@sharfazhameed6382]

Always on point

[@freakbot1056]

7:56,you have two caps shorting out bcoz of solder bridging. Maybe it was ground as I see the phone booted up without any issue.

[@Swenser]

Very nice of you to share. I'm interested to know how you proceed when no startup issue but no reading of a short. And with no circuit diagrams. The repair becomes much harder for me in that situation. What tips can you give when no obvious short exists and no schematic. What do you normally go to try next?

[@CINOTechnology]

Before fixing the motherboard, you can force restart the phone or perform a DFU mode restore. If the phone still cannot turn on, you can coat rosin directly on motherboard and replace the melted part without the short-circuit and diodes reading checking.

[@burnz711]

@@CINOTechnology can you fix a waterdamaged a70 without wiping the phone

[@chichimax]

Hi what type of reball stencil used. Thanks

[@bmwmpower1491]

5 Star, great job!! What temperature do you work with and Air??

[@CINOTechnology]

330℃

[@burnz711]

@CINO Technology does this factory reset the phone or will I still have everything on the phone ? After the repair to the motherboard has been completed??

[@CINOTechnology]

Yes, we also share a method for data recovery, check this: kzbin.info/www/bejne/eZrdaZ2rl7ikZtU&t

[@moazzemhossain5232]

Good Doctor

[@premkumar-pt1gj]

There is a short soldering joint on two capacitor s beside ic

[@ramtv3326]

Nice work. Are all Samsung PMIC the same? Like a70 from a71..thanks.

[@CINOTechnology]

No, they have the different PMIC

[@MrGAGAN5555]

Vary good ic Reballing

[@ceejay_gaming9636]

People I have a question, what amperage do you set on the DCPSU in order to detect the short ? Is 1amp enough ?

[@ByCINAR]

I also have these materials, mold, liquid solder and flux. But my solder does not combine with the integrated I removed, the solder does not hold. Any ideas why that might be?

[@younespl8762]

Thanks for sharing, I really like your videos.

[@CINOTechnology]

Thank you!

[@MaitreClairvenson]

❤❤❤ so cute idea

[@ario5254]

Thank you for this video but I have questions and it is what is the temperature of hit when we put new ic in bord?

[@CINOTechnology]

330℃

[@aruntiwari6470]

Good job

[@CINOTechnology]

:)

[@ahmedbatis2483]

Is this for repairing the mainboard and clean it, or you replace it with another? sorry I didn't get it

[@CINOTechnology]

We repaired it. But you may wanna try to replace it with a new one if your repair doesn't work.

[@rubel9000]

sir please upload a video about water damage display off of samsung galaxy a 70 and how to fix it. thanks you very much.

[@CINOTechnology]

We have added that to our schedule

[@theunderdawg9773]

Have the same problem

[@UmarUmar-np9wb]

Can you say ringer how jumper it

[@kamilbeben875]

Did you put back metal cover on motherboard ?

[@prabhashrathnayake9113]

Hi sir, My a70 phone was not charging with 3.o standard charger first but it worked for 2.0 after while it was showed usb connected massage on the phone but it was blinking, massage come and go after the phone went to safe mode. I gave it to repair shop here and he was saying that I changed the charging port unit but not worked and he did something to the motherboard and now it was not working. I asked Samsung service center to repair however they said you should replace the motherboard. Please give me an advice

[@CINOTechnology]

What's your phone problem now? It cannot turn on?

[@gouravmohapatra2239]

My phone m31s motherboard is already repaired but after how many days have I use my phone

[@jeraldleung6009]

Seem my A70 sentimental, sometimes not charging. I think it may be cap is losing its values. What problem, can you advise please.

[@Srinivas-zu3vw]

Excellent 👍🙏

[@benasyara8018]

Does warranty cover this kind of damage?..i think my phone have the same problem..

[@CINOTechnology]

There are many kinds of not turning-on, some of them can be covered:)

[@rodian2855]

Do you do the same with a motherboard damaged by water and were are you from

[@CINOTechnology]

Shenzhen China, CINO Technology WhatsApp [phone]

[@user-pf4tk7gr2w]

Hello can you give me the link on the flux you used?

[@CINOTechnology]

Here it is www.cinomall.com/products/soldering-flux

[@user-pf4tk7gr2w]

@@CINOTechnology maybe there is same flux paste on the Aliexpress?

[@remonelke3468]

Dear Sir, the First Thing melting Rosin was the Cap just right of the IC, suggesting a short hier (Cap. Not The IC). What you mean?

[@CINOTechnology]

we believe we didnt say that,,,would you mind point out the exact time in which video? thx

[@ZEESHANSIALKOTI]

HOW MANY VOLTAGE AND AMPS YOU INJECT

[@NewTechPlanet89]

Sir you change New ic or old ic reballing? Pls tell me sir..

[@CINOTechnology]

Reball it. But dont damage it or you might need to replace it with a new one

[@amyrobinleonard7363]

Cino how did you see its the PMIC thats faulty?

[@-GTarunkumarPeela]

Yeah my mobile was short circuited. But I can't replace the parts . Can I give me an advise

[@CINOTechnology]

Why you cannot replace the parts? Just follow the demonstration in the video

[@user-cv7jv5dl6w]

I am a South Korean subscriber. I'm watching the video well. Can you add Korean subtitles too?

[@CINOTechnology]

Well... that's no bad idea...

[@ikkutech1]

first of all rosin shows the capaciter short then why you reboll the ic and also once you clean the borad there 2 small capaciters became shot near the ic still short is there then how the mother boad on i think there is some editing happend

[@sibonelelohlatshwayo7753]

if i dont have a new chip, can i just reball the one i took out and put it back? Can it work?

[@CINOTechnology]

That depends. Some chips' wrong is not with the ball.

[@user-zs7fv2dm8s]

What temperature use?

[@CINOTechnology]

There is no exact temperature actually

[@reymanik1175]

please show me hot airgun temprature thank you.

[@rifdarawshan8198]

Will lose the datas after repairing the motherboard?

[@user-il8re6bg9c]

Good

[@CINOTechnology]

：）

[@GamingEMU786]

What's is your name this ic please

[@suhaibp.kp.k4526]

Help sir I charging my phone in morng tym after the few minutes the phn not turn on what I do sir then I give my phn to a service center they said the board complaint

[@panzoluzayadio9835]

quando ta tirar temperatura de quanto

[@CINOTechnology]

330℃

[@aamenahshaikh2462]

Hi can you help me I m useing galaxy a70 But boath camera front and back not working I chang ok camera both but Sam problem. So I flash also but .problem is not solved what I do can you help me?

[@CINOTechnology]

Motherboard faulty. Input *#0*# to check the faulty cameras.

[@sorinvsc]

if i repair the motherboard, can i recover the data on the phone?

[@CINOTechnology]

yeah

[@gggamingyt.official]

My mobile Samsung galaxy A70 this problem how do fix motherboard overhiting how do fix

[@CINOTechnology]

Whether you run too many apps or short circuit happens

[@truwer4263]

Sir i have some kind of a same problem but with a a80 galaxy , i sent it to an service and they couldnt repair it , they said the problem is in motherboad and they need to replace it , cause there is some kind of cable that is performing some kind of overheating and creates a short circuit that keeps the phone off.Can help you me with some kind of advice please🙏

[@CINOTechnology]

You can consult our latest video: All android phones not turning on fix, you can learn something useful on that video.

[@lakhvirsingh7282]

Solution of a50 shows only 20 ampere after changing power.. ........befor pm change. No ampere reading.knw its stucks on 20 amp

[@tytydonsor1518]

How long time to do it?

[@CINOTechnology]

Us？A few hours.

[@tauhidansari6316]

Why you not using thermal flir cam instead of rosin

[@CINOTechnology]

Rosin is cheaper. Our thermal flir cam is broken at that time.

[@786abubakarwerya]

Sir from where i can get PMIC

[@CINOTechnology]

We will update it on our website in the future. Right now you can buy it from Alibaba

[@pritambirwadkar1978]

Hi

[@vandanasharma2309]

Will this erase the data?

[@ivanrendulic7352]

No this don't wipe data

[@rafaliyo86]

Do you know what can be the problem in a A70 with no display but it turns on? After a huge hit a friend of mine broke the lcd but even with a new lcd it doesnt show image

[@CINOTechnology]

The display driver IC might have been faulty

[@rafaliyo86]

@@CINOTechnology I have seen you replace it in another video. Can I buy it or just getting from another board?

[@martinradulovic1775]

Hello where could i buy a PMIC

[@CINOTechnology]

Try the local phone repair store or google it

[@martinradulovic1775]

@@CINOTechnology Are the PMIC on your site also good for a70

[@user-eo7nx1lu5x]

How much cost for repair?

[@francisbondoc2873]

I have same problem with my A70 how much it will cost me for you to repait it.?

[@CINOTechnology]

CINO Technology WhatsApp [phone] contact us

[@TristanJHazel]

Good morning my A70 is having motherboard issues. What's your address where I can send my phone to be repaired. Please advise.

[@CINOTechnology]

Enquiry from [e-mail]

[@googlemaster9996]

Hello sir my samsung galaxy note 20 ultra is network problem,, network is not working Can u repair this

[@CINOTechnology]

We can, but international express is under serious control now.

[@vedataslan6121]

Good work but your fingerprints are on all camera lenses.

[@CINOTechnology]

Thank you for your tip

[@kamil9233]

Hello , Im ur fans from malaysia .. may i ask ? i have phone Samsung A70 , lastnight my phone still can On , i charge and im going to sleep , after i wakeup , i cheak my phone wont turn on , i'll try charging my phone still cant . what the problem ? please help me

[@CINOTechnology]

First you can go to the recovery mode and reset the phone. If not working, try to replace the battery or charging connector. Motherboard fix is the last step

[@rahulseram6900]

Can we change the motherboard for Samsung a51,

[@CINOTechnology]

Yes

[@rahulseram6900]

@@CINOTechnology i can't turn on my phone just like the one in this video

[@zoransafar5121]

Hello.I have same problem.My A70 charging 0.22 A and cant turn off. Can you give me advice. Thanks

[@CINOTechnology]

Cannot turn off or cannot turn on?

[@zoransafar5121]

@@CINOTechnology turn on

[@CINOTechnology]

@@zoransafar5121 Flash the phone, if not working, then the power supply circuits must have been short-circuited, replace the parts causing the short circuit

[@samanamohsin2483]

i have a same problem.. can you solve this problem on my phone

[@CINOTechnology]

Yeah. For details chat with CINO Technology WhatsApp [phone]

[@muhasmuhas6550]

Bro a70s restarting problem any solution plz

[@NoBody-xx6ii]

what kind of heat gun please?

[@CINOTechnology]

We use the 3 in 1 Combination Hot Air Gun Desoldering Station DC Power Supply Maintenance System (ATTEN MS-300 ): www.cinomall.com/collections/tools/products/atten-ms-300-3-in-1-combination-hot-air-gun-desoldering-station-dc-power-supply-maintenance-system

[@NoBody-xx6ii]

@@CINOTechnology thanks I really appreciate the response peace and love

[@joshuamontero9307]

Can you help my samsung a70 wont turn on. But the alarm clock still working what is the possible defect. Pmic also?

[@NoBody-xx6ii]

@@joshuamontero9307 try soft reset power + vol down button for few sseconds

[@joshuamontero9307]

@@NoBody-xx6ii still not turning on.

[@MrGAGAN5555]

Dear Sir I'm from India....my samsung a70 mostly time white light and sim 1 is not support ..what can ido

[@CINOTechnology]

display cable and signal part wrong

[@user-hz1lm4bu2c]

وين المحل موجود

[@CINOTechnology]

الصين

[@lyco5251]

5:03 lol you soldered two capacitors accidently

[@UmarUmar-np9wb]

Muje ringer jumper karneka hai

[@sheeshpatel5578]

A70 NOT CHARGING I CHANGE MAIN FLEX ,CHARGING FLEX, ALSO BATTERY BUT NOT CHARGING ANY IDEA SIR PLS TELL ME THANK U

[@CINOTechnology]

Some parts on motherboard has been faulty, such as the charging IC or the circuits connected to charging IC.

[@jobairahmedjisan1277]

sir,how much it cost?

[@CINOTechnology]

CINO Technology WhatsApp [phone]

[@jobairahmedjisan1277]

@@CINOTechnology sir,sorry i don't use whatsapp.can u tell me the price of PMIC??

[@jmmujar3984]

Pmic price plzzzz

[@AA-up2xf]

How much it cost?

[@CINOTechnology]

CINO Technology WhatsApp [phone]

[@iamzaiii]

how much it cost, same problem for my phoe

[@CINOTechnology]

CINO Technology WhatsApp [phone]

[@iamzaiii]

@@CINOTechnology iam from PH , please send me an email, thanks

[@iamzaiii]

how can i send my phone, and how much it cost ??

[@kubrahashem6481]

@@CINOTechnology hi

[@meriperaju1754]

Till to charging low

[@jobairahmedjisan1277]

and sir after updating to android 10,my phone's motherboard is damaged.what to do?

[@CINOTechnology]

Updating won't cause the motherboard faulty. Has the phone been not turning on or some other faculties?

[@jobairahmedjisan1277]

@@CINOTechnology no sir.it's samsung update fault.they did some mistake on their update.my phone was absoulutly fine before the update.after update,my phone doesn't turn on.i went to mechanics,they said motherboard and battery are both is damaged

[@eunicemensah5449]

Please am having same issue with my A70 kindly assist us

[@UmarFarooq-il9cj]

Sir Mera a70 mubel Ka display on ni hota or teach kam kar rha hai iska koi solution btaen

[@CINOTechnology]

Hello, could you speak English?

[@seandaley6867]

Am thinking of sending my a70 to u because dozen of persons try to fix it with no luck

[@CINOTechnology]

glad to help you.Enquiry from [e-mail]

[@i_0075]

my a50 neverturns on and stuck at samsung logo with android head and can enter download mode what is my phones problem

[@CINOTechnology]

Flash your phone

[@i_0075]

I flashed

[@i_0075]

But no use

[@i_0075]

Please help me😭😭😭😭😭😭

[@i_0075]

Please sir also tell how to flash correctly,I don't know what is the problem

[@NovaEmotion]

+ 1

[@jahurakhatun1598]

My phone is same doesn’t boot after water damage what can i do now

[@CINOTechnology]

Fix it as the video shows

[@xaayedrazz8417]

Samsung A71 shows No service, please tell me what could be the reason,,,,

[@sasipeela1304]

Sir can u repair my phone . Power issue

[@CINOTechnology]

CINO Technology WhatsApp [phone]

[@sasipeela1304]

@@CINOTechnology I have messaged it

[@CINOTechnology]

@@sasipeela1304 OK, we will contact you as soon as possible

[@meriperaju1754]

Switching on suddenly went back and on again and again

[@meriperaju1754]

Brother will you repair my phone

[@ArunRaj-jz8xz]

Bhai mujhe apna phone ka motherboard theek karana hai Samsung a70

[@CINOTechnology]

CINO Technology WhatsApp [phone]

[@meriperaju1754]

Please help me Brother 😭

[@CINOTechnology]

CINO Technology WhatsApp [phone]

[@InsideOutElectronics]

You did not replace the IC you just re-balled old one?!!.....

[@CINOTechnology]

it‘s not the same one, it's just not brand-new

[@InsideOutElectronics]

@@CINOTechnology got it, you just reused one from the old board

[@risdiyantodianto4884]

Samsung A50 power 😭 indoesia no saya youtube?

[@CINOTechnology]

Can be obtained from another bad board of the same model