yashsingh1/xdaforums huggingface dataset:
[Xiaomi Redmi Note 3 Guides, News, & Discussion] bombilakus:
Hey guys just seen this thread. I had QC. 2.0 charger and it burned my charging board or it may be burned because of bad charger since I could charge it at 1A current. I replaced board with aliexpress one for 2$ and bought new charger and its charging 2.1mah now. If it dies again after 1 year of charging like last one ill be more than happy since ill rather change 1 or two boards in one year than have 4hours charge time :) Btw im using Kenzo not Kate
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Lucky you, i have kate, btw i charge every night from 50 to 95 to preserve battery, max current 1.9A original charger niteogen os 8.1 stock kernel.

No problem here, charge it in 1.30~2hs
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Ajay N:
Can u plz tell me how did you cut the zener diode..?? I am also facing the same problem.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] shomil49:
Go to any shop and ask technician to open the device and point him to remove the zener matching with picture u have to remove it i used a knife to open tha devixe and remove the zener diode.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] shub08:
Thank you so much brother it helped me out.

I am using stock rom with locked bootloader. i have used QC 3.0 charger for one day and from right next day issues got raised. Phone was not getting charger. And your thread helped me out.

Thanking you from my Deep Heart Brother [MENTION=6625965]Frenzi2012[/MENTION] :):):):)
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
You are welcome

Enviado desde mi Redmi Note 3 mediante Tapatalk
[Xiaomi Redmi Note 3 Guides, News, & Discussion] shub08:
sorry to say but my phone got up but stucked in mi logo. nothing happens further. i tried to flash stock rom through fastboot and EDL. flashing got success, but still stucked on mi logo with android animation please help me brother :confused: :crying:
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Strange, you are the first one, you remove only zener from charging plate or both?

You can try install redwolf recovery from edl and nitrogen os 8.1, read the guide install lineage os with locked boot loader but use redwolf recovery instead official and Nitrogen os 8.1 instead lineage

Enviado desde mi Redmi Note 3 mediante Tapatalk
[Xiaomi Redmi Note 3 Guides, News, & Discussion] shub08:
Finally its up on global stable MIUI 8.1.6 , but it shows me -2% battery and i have charged for 2-3 hours nothing change. So i Re-flashed the Rom, but issue is same. And even i cannot update my Rom through OTA update, it gets 100% download but when it reboots, the update dose not apply. :crying::crying::crying::crying: Help me!!!!! [MENTION=6625965]Frenzi2012[/MENTION]
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Not happening to me but read this

https://xdaforums.com/redmi-note-3/help/battery-negative-value-t3411231

Enviado desde mi Redmi Note 3 mediante Tapatalk
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Ok guys there are 2 solutions to this problem one is drain your battery and don't charge it for 2 3 days drain it like he'll coz after switch off still some juice is left you have to drain completely and other rapid method is open your redmi note 3 and disconnect battery cable and reconnect it... The problem is not software its hardware where battery reading stuck at minimal which is - 2 ... Thinking minus two hours coz at zero still some battery left for edl and fastboot mode time and alarm... Fixed my redmi note 3 hope it will help you.. Coz tried all method format... 10 times flash all roms through fastboot mode Coz updater mode won't work coz of low battery reading... Enjoy guys

Thanks to [MENTION=4578064]androidnandroid[/MENTION]

Enviado desde mi Redmi Note 3 mediante Tapatalk
[Xiaomi Redmi Note 3 Guides, News, & Discussion] psndna88:
flash agni toolbox from agni los-n/o thread 2d or 3rd post, and select wipe battery stats in aroma options. reboot.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Thanks man, try it [MENTION=5441148]shub08[/MENTION]

Enviado desde mi Redmi Note 3 mediante Tapatalk
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
curiosity, what partition are the battery stats that are not deleted by changing the rom?

Enviado desde mi Redmi Note 3 mediante Tapatalk
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Hemphiz:
Holy shmokes! I immediately knew my port blew so ordered a new bit, in the meantime Google around and bumped into this thread. As I was getting a new port thought to hell, and killed it with a Stanley blade (only the bottom one) and boosh! If charges!!! Many thanks. Not replugging my QC 2.0 back in just yet though ><
[Xiaomi Redmi Note 3 Guides, News, & Discussion] misiek735:
[MENTION=6625965]Frenzi2012[/MENTION] thank you very much for all the information.

I created account just to share with you what happened to me. I always use original xiaomi charger with ugreen cables, but yesterday I had low battery level and I decided to use xiaomi powerbank 2 10000 mAh which unfortunately support quick charge 3.0.

Phone charged from 15 to 35 percent and then stops reacting for charging. After 2h of reading forums I remove both of zener diode and now it's working, but I have a question...

In that way it is not allowed to use this powerbank with any device which doesn't support quick charge 3.0?

To be honest, I bought this powerbank to give an external source of energy for my video recorder zoom q2n (it needs 5v 1A to work). I use it like this most of the time, and it is working fine. But just because my recorder or phone don't have qc 3.0 I shouldn't use this powerbank? It's ridiculous...

And it's also ridiculous that the powerbank designed by xiaomi for xiaomi devices is destroying the xiaomi mobile phone...
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Yeah, The charging board of the rn3 is poorly designed. It should not have that zener, it should have a variable voltage stabilizer. I guess your other appliances are better designed.

I suppose the redmi note 3 problem is that all the hardware except the load plate supports qc3.0. the charger goes to 9v and burns the zener. I do not know how to negotiate the tension the charger with the Micro or kernel, but it does not happen with your video recorder, because it does not have an SD650 inside.

Enviado desde mi Redmi Note 3 mediante Tapatalk
[Xiaomi Redmi Note 3 Guides, News, & Discussion] misiek735:
So I understand that that's the issue just of kenzo/kate? Any other existing device is just fine with that kind of charging?
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
I suppose the redmi note 3 problem is that all the hardware except the chargin board supports qc3.0. the charger goes to 9v and burns the zener. I do not know how to negotiate the tension the charger with the Micro or kernel, but it does not happen with your video recorder, because it does not have an SD650 inside.

It would be necessary to analyze each circuit, especially if they have Snapdragon inside.

Enviado desde mi Redmi Note 3 mediante Tapatalk
[Xiaomi Redmi Note 3 Guides, News, & Discussion] misiek735:
[MENTION=6625965]Frenzi2012[/MENTION] yes, you're absolutely right. As I know, we can edit the value of charging in kernel. In some custom kernels you can choose between 1800 mAh, 2A or 2,1 A to charge.

I am using xiaomi eu stable miui 9 without custom kernel. If everything, except charging port is supporting qc 3.0, it seems that it happen to me because of faulty official kernel? Or I am mixing V with ampers and ampers have nothing to do with burning the led?

Very interesting topic. Now I am curious how xiaomi build redmi note 5 pro (with double camera), because I wanted to buy it as my next phone. My family is using redmi note 4x or redmi 4x, I also have to take a look on their construction...
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Unfortunately I never found the circuit of rn3

Enviado desde mi Redmi Note 3 mediante Tapatalk
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Both amper and voltage. When you high voltage to 9v, zener need to support extra current to maintain 5v on battery. Current drift by itself to decrease the battery current and maintain 5v.

The maximum current supporting by zener It is overtaken and burned.

I do not know what effect it will cause now that you do not have the zener. We would have to analyze the rest of the circuit and we do not have it. I just do not use qc

Enviado desde mi Redmi Note 3 mediante Tapatalk
[Xiaomi Redmi Note 3 Guides, News, & Discussion] misiek735:
[MENTION=6625965]Frenzi2012[/MENTION] thank you very much for the conversation.

Muchas Gracias :)
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Jaja y yo matandome para explicarlo en ingles

Enviado desde mi Redmi Note 3 mediante Tapatalk
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Fahrilubis:
Someone can help me? My device cant detect at all on my pc since 1 month ago, already change subboard and flexibel cable then if my kenzo shutdown then i charged, just see blink red like edl mode
[Xiaomi Redmi Note 3 Guides, News, & Discussion] cjvzla:
Hello, I've been having charging and battery life issues for months now and I was thinking maybe the battery is just dying (I have my Kenzo since October 2016)

First the USB cable that came with the phone stopped working so I was using various cables and for months now my phone takes incredibly long to charge and doesn't ever get to 100% , why could this be ? I've never used a QC charger, only the one bundled, but came here looking for opinions, could the zip in OP help ?

On the screenshot you can see how SLOWLY my phone is charging.

Thanks .
[Xiaomi Redmi Note 3 Guides, News, & Discussion] DonJigsaw:
remove ur dioda on ur device. it wroks
[Xiaomi Redmi Note 3 Guides, News, & Discussion] ShafiX94:
Thx bro... Remove the zener diode on usb board not working but after remove the zener diode on motherboard my phone start charging again... Using radon kernel on 2.4mA setup and qc3.0... now reduce the kernel setup to 2.0mA and using the original charger... The question is can i still using the qc3.0? And can the motherboard fried if i still using it?
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
I donk now, never reported till now this case
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
You have original charger? You need a good 5v 2A charger.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] cjvzla:
Yes I have original charger.. maybe it's dying too ?
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Only 200ma charging speed? Try it on another phone and see.

Other way is use agni kernel and select old thermal I have problems with slow charging in aroma installer. Option

I recommend nitrogen os 8.1, try clean flash with stock kernel , if not work agni kernel, if not wotk radon kernel, if not work update firmware.

To change radon to agni or vice versa you need go back to stock kernel first. Or restore boot and system backup or flash rom package again.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Sweex95:
THANKS! It worked. Blew mine with a AUKEY Quick Charge 3.0 6-Port USB Travel Quick Charge. has been working for some time thou, but i guess it finally had enough.

Whats the downsides of this? A bad charger can do damage because phone cant regulate it?
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Yes bad charger maybe damage motherboard, or not. just in case use 5v 2A quality charger
[Xiaomi Redmi Note 3 Guides, News, & Discussion] psndna88:
check agni kernel threads for a possibly new solution with qc chargers forced by kernel's charging driver to not use 9v QC [pseudoQC]
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Tarun217:
Guys.. will i have any problem with Xiaomi Qc3.0 charger on Stock NOS 8.1 kernel ?
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Yep, use agni 12.7 for limiting 5v qc
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Tarun217:
Done dude.. now what should i choose 1800mA or 2100mA(default)
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
[MENTION=4365701]psndna88[/MENTION] said that it is safe 2100 since it limits the voltage to 5v. if it heats a lot use 1800.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] wojtec124:
Cutting zener diode in motherboard solved the problem!

Thank you very much

QC 3.0 was the problem, I plugged phone to QC 3.0 charger with usb tester and I saw about 8-9 volt for a moment and then it stopped charging :D
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Jeferex:
Thank you very much. You saved my phone. I had to cut both zener diode, charging board and motherboard. BTW, I have Redmi Note 3 Pro (Snapdragon version)

Just in case, I am buying another charging board. I found this in Aliexpress: https://www.aliexpress.com/item/Ori...USB-Charging-Port-Flex-Cable/32752808876.html
[Xiaomi Redmi Note 3 Guides, News, & Discussion] wyemarn:
I tried cutting both the zener diodes but still couldn't charge my note 3. Attached are the pictures. Can anyone advice if I did it wrongly?
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Verify the voltage between the two legs of the zener with the charger connected, needs 5v, if it has 0v the Zener is still shorted.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] wyemarn:
I don't have a tester to to check, is there any other method? Also this redmi killed 3 USB ports of my Anker 40w charger... Is there something wrong?
[Xiaomi Redmi Note 3 Guides, News, & Discussion] CharliePascal:
I save my phone RN3P

I need to thank you for save my phone from myself!.

I Buy a Ugreen Car Charger 2 Port 18W Quick Charge 3.0 thinking that with my phone RN3P was going to charge faster, on the page the only description says that it was compatible with Xiaomi.

But for my surprise after connecting it for a few minutes it stop inexplicably charging the phone, what's more, the USB cable that had an LED indicator stopped working as well.

I followed your instructions to eliminate the ZENER diode from the charging port but still did not charge. Then I proceeded to remove the diode from the motherboard and it was at that moment that the battery of the phone received the charge again. Now I only using 5V 1A chargers to avoid damaging the motherboard and waiting for the Dock Connector Board i ordered in aliexpress.

Thank you my friend.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] wyemarn:
Mind to post pictures how the eliminated zener looked like? I still couldn't charge.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] itsumarashraf:
Thanks it worked

I'm using mi power bank 2i, from a long time but, yesterday when I plugged my phone with my power bank it suddenly stopped charging. Luckily found this article. Removed the zener diode on the motherboard and now it's working fine.

So now my question is, can I use my power bank now for charging after removal of diode? And why are there two diodes. One on motherboard and other on charging port?
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
I don't know, xioami put diodes for protection, maybe other components support 5v max, maybe not.... you can try and report...if work excellent, if not, cry :crying:
[Xiaomi Redmi Note 3 Guides, News, & Discussion] wyemarn:
Can you guys show some pic how the zener looks like after removed. I still can't charge my phone after removing both zeners and changing USB charging board.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] ESEMCE:
You sir, are a genius!

My phone charged perfectly fine overnight but this evening when I plugged it in with a 1A charger.. nothing.

Treid another charger and cable, nothing, tried my PC and got an over-voltage warning, which triggered me to realise there was a circuit problem, not a bad microUSB or battery.

I found this post, popped off the charging circuit Zener, but no joy.

Inspected the Motherboard Zener with a zoomed in camera and good light source and I could see the burn marks around the Zener on the circuit board substrate.

Popped that one off and we are back in business!

Recommend to people to use a PC to test for failure AND to inspect the diodes for damage prior to removing them!

For what it's worth, I have been using a Xiaomi Charger that came with my wife's Mi5 handset.

Running NOS8.1 and Radon kernel.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
Thanks for your feedback, maybe you can help to [MENTION=1294462]wyemarn[/MENTION]
[Xiaomi Redmi Note 3 Guides, News, & Discussion] ESEMCE:
I found using a sharp knife blade I was able to lever off the motherboard diode entirely.

Just the bare pads on the board remaining.

I used a pin for the charging circuit diode and my end result looks similar to yours.

Use a knife to sever any remaining connection and clean the area.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] k23m:
Protection Method

I have no problem charging my RN3P with Xiaomi QC2 or BlitzWolf BW-S9 QC3 charges. A USB tester measures 9V supply voltage with both of the charges and nothing breaks in RN3P. Whatever the protective component is, it surely isn't a 5V Zener diode.

Believe or not but RN3P is actually listed as a QC2 device on the official Qualcomm Quick Charge 03/2016 document. See the attachment. I could not attach the entire doc due to XDA file size limits.

The damage must be due to a bad batch, component tolerances or different revisions of the design. If you are afraid to use a QC2-3 charger directly, then just attach a USB data blocker to it. Without data communication a QC2-3 charger will never supply more than 5V....

https://www.amazon.com/PortaPow-Data-Blocker-Adaptor-SmartCharge/dp/B00QRRZ2QM

https://www.amazon.com/Plugable-Universal-Charge-Only-Adapter-Android/dp/B00FA9GXKM/

The blocker is very simple, it only disconnects or shorts the data lines. You can make one easily for free.

Cheers

:highfive:
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Frenzi2012:
The snapdragon 650 supports QC3.0 but the zener not, many people in this thread burn the diode with qc3.0 charger.

I downloaded full list from Qualcomm page and Redmi note 3 not figured. Other Mi phones yep.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Apcoolboy:
After removing both diode phone charge again. Would I continue use of my qc 2 charger again by limiting input to 2.0mA in radeon kernel?. I want to use qc 2.0 again.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] mmystere68:
Give op a medal

HOLY ....., THAT WORKED. Thanks a lot OP. this phone has been sitting more than 7 months and now i just revived it. i broke the diode in both the usb board and motherboard. I had wasted like 10$ buying different usb boards and trying.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Apcoolboy:
Hey, Thanks for this thread. It saves me money and time.

Any expert here? I need Help.

I removed diode as OP mentioned . Revived my phone for few days then I search for USB Board in locals and find one. But serial number on USB Board is different than original. Original USB board has "H3A_SUB_LLDB866b1_2 HMFS" serial number and what I get has "H3A_SUB_AX160405_ CTFS". (pictures attached)

Both are almost same and identical just serial number difference. I research little and come to know that new board is for Redme note 3 SE (I have Redmi note 3 SD version). Although I took risk and install new board. works perfect (charging, Audio, Mic, Networks, All). No issues till now.

My question is, Right now I am using original xiaomi charger (5V) with slow charging. I have Aukey QC 2.0 for daily charging and Radon kernel (Fast charge option). If I apply my old settings of fast charge and use QC 2.0 Charger, then everything will be ok or I would face some short circuit problems? I cant wait 3-4 hrs to charge whole phone.

UPDATE:- I tried fast charge after replacing USB board and it works. But after usage of few hours I noticed that my phone getting problem of network. It get poor network with almost no Internet working despite I update preferred network type to "LTE Only" (using LTE 4G network) wifi works smooth. Also no problem in incoming/Outgoing calls. Only problem with internet. Any solution. I think it is because of Kate verison USB board that I have installed instead of Kenzo.

Thanks in advance.

Board with white background is old one (original which comes with phone). Next to it is new board.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] chinmoysarkr:
Redmi note 3 Charging Solution

Thanks for the Support. it solves my phone's problem.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] philto:
resolve only in part otg don't work

I solved the problem by following the tread of Kuan on my two rdn3 but for one of them the OTG does not work anymore.

some idea .. to get around the problem the phone is not unblocked.

thank you

kuan tread

forum.frandroid.com/topic/254961-redmi-note-3-pro-ne-charge-plus/?page=6&tab=comments#comment-3768699
[Xiaomi Redmi Note 3 Guides, News, & Discussion] jiggy89:
Can you please provide details how to remove zener diode
[Xiaomi Redmi Note 3 Guides, News, & Discussion] philto:
I take a blade with a sharp point, apply the tip to the base of the diode, squeeze a pressure from the bottom to the top as to lift the diode. be careful not to touch the other diodes then scratch a little what remains delicately. personally I removed only the diode from the carta usb.:laugh:

forum.frandroid.com/topic/254961-redmi-note-3-pro-ne-charge-plus/?page=6&tab=comments#comment-3768699
[Xiaomi Redmi Note 3 Guides, News, & Discussion] mehrshad.shafaghi:
Damn, I faced this problem just yesterday. I had guessed that there might be a problem with a security diode but this thread approves the point. Thanks in advance!

Btw, can I just replace the diode instead of changing the whole board?!
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Apcoolboy:
Hello All, I replaced my USB Board and now facing some serious network issue. can anybody help on this.

Here is detailed xda thread on that if someone help.

Thanks
[Xiaomi Redmi Note 3 Guides, News, & Discussion] onliner:
Hi, is it possible that there is a third safety diode?

I have removed both diodes (charging board and motherboard) but my phone continues: connecting - disconnecting at random, sometimes charging completely without problems, sometimes it takes hours to charge due to this problem.

PS: I always used the original charger and cable.
[Xiaomi Redmi Note 3 Guides, News, & Discussion] Apcoolboy:
If both diodes removed and then I change USB board only. Is it dangerous to use then qc chargers? as main board diode is also removed but USB ones (new) is present?
[Xiaomi Redmi Note 3 Guides, News, & Discussion] ebbano:
Maybe the USB connector is mechanically damaged
[Xiaomi Redmi Note 3 Guides, News, & Discussion] kanekoRIE:
thank you

i just didi what you said and now my phone can charge again. the problem i think is because i use bad cable from xiaomi powerbank so my phone like plug and unplug to the power that cause short circuit. i created account just to say thanks to this. cheers. have a good day. :D
[Xiaomi Redmi Note 3 Guides, News, & Discussion] smjhh:
i have same problem too.

randomly charging.