Database Users

Do any Redmi 3S versions support quick charge 3.0 ?

Unlike redmi 3 , 3S models are powered by a SOC that supports quick charge 3.0 but there is no mention of it in the phone specs

Yes, it unofficially supports QC 3.0

unofficially? It seems strange that they wouldn't advertise it but in any case ... are you saying that with the appropriate charger this device will charge fully within the hour? Have you tried it yourself?

I dont think it supports qc 3.0 cause if it had supported it xiaomi would have said that and its price would have been higher as hugo stated in redmi note 3 launch event that they have to pay some extra money to qualcomm to activate qc 3.0 and that they did not put qc 3.0 to keep the device cost low so in my opinion they did the same with redmi 3s to keep its price low they did not put qc 3.0. Instead there maybe qc 1.0 or 2.0

If the SoC supports QC 3.0, it doesn't directly mean the device will support it. It's like saying, SoC supports 21MP camera, so device must have it. lol.
BTW, if 3s had supported QC 3.0, then Xiaomi would have marketed it nicely. You know, how good they're at marketing.

Really missing QC3. It would have made charging time much lesser.

I understood that it would have it and ordered power bank and charger that supports QC3. They charge it approx. 40%/hour, and Ampere shows it taking 2A/5V. Does this mean it supports it? I don't know :laugh:
One thing also is that my charging cables aren't high quality so they might be restricting it.

Veksu said:
I understood that it would have it and ordered power bank and charger that supports QC3. They charge it approx. 40%/hour, and Ampere shows it taking 2A/5V. Does this mean it supports it? I don't know :laugh:
One thing also is that my charging cables aren't high quality so they might be restricting it.
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Thats not Qc 3.0 its Qc 1.0 which is basically very slow.so dont get your hopes up.redmi 3s and redmi 3 and redmi note 3 all supports Qc 1.0 only

jokerpappu said:
Thats not Qc 3.0 its Qc 1.0 which is basically very slow.so dont get your hopes up.redmi 3s and redmi 3 and redmi note 3 all supports Qc 1.0 only
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I don't know if I would call that very slow but yeah I'm a bit disappointed. Maybe in the future with custom kernels or something.

Veksu said:
I don't know if I would call that very slow but yeah I'm a bit disappointed. Maybe in the future with custom kernels or something.
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Yes with custom kernel we can achieve charging speed as fast as that of Qc 2.0 but not 3.0 . But still we need a good developer for that.hope we get one.

No.. Doesn't support quick charge officially

According to this video it charges in ~2 hours 30 minutes with a quick charge 3.0 enabled charger vs ~3 hours with the included 5V 2A charger.
https://youtu.be/5eASPZ70Sws

Looks like it already support at 6least QC2 standard as volatge upto 9v are achiEved by qc 3 charger .
Though soc support qc3 but I think we need a custom keral to support qc3
With qc 2 or 3 charger a depreciation of half hour charging time is achieved already as shown in video link above. With custom kernal another half hour with qc3 charger will not be difficult
I think this device has great future as developer favorite device
Let XiAomi release it's sources and unlocked for boot loader
8

Xiaomi does not want anyone to unlock its bootloader. They made it over complicated.I don't think they will release unlocked bootloader ROM even though device specs are good.

vikraminside said:
Xiaomi does not want anyone to unlock its bootloader. They made it over complicated.I don't think they will release unlocked bootloader ROM even though device specs are good.
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?? How complicate it is ? And why everyone (who I know including me) has it? ) how difficult is to fill a form and wait 3 4 days for the approval?
Στάλθηκε από το Redmi 3 μου χρησιμοποιώντας Tapatalk

The phone just release maybe someone in XDA will make a good kernel in the near future.

kodorevi8ulis said:
?? How complicate it is ? And why everyone (who I know including me) has it? ) how difficult is to fill a form and wait 3 4 days for the approval?
Στάλθηκε από το Redmi 3 μου χρησιμοποιώντας Tapatalk
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Because Im still stuck at 50% unlock and so many one else

rajmagi said:
Because Im still stuck at 50% unlock and so many one else
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so you have filled the form and you got the sms with the "ok" for unlock ?
which rom do you have ?
you have official rom or unofficial ? (if you have unofficial just don't ask , of course you can't unlock with this rom)
if you have official , i think (well i don't remember exactly) is that you must (or is just better) switch to dev rom for the unlock , not stable

No. Xiaomi maybe cost down something.

The reason they're not advertising QC3.0 support is they'd have to buy the license to do so. And since this is a budget series of phones, they have to cut the expenses as much as they can. I tested it with a QC2.0 charger, and the phone charged at 9V, don't remember the amperage, though. So it supports at least QC2.0.
Sent from my Redmi 3S

redmi 2 fast charging, is it safe?

i have this feature on my phone's kernel atm, is it actually safe? because Redmi 2 itself doesn't support fast charging by default will it cause our battery to overheat? or even explode (lol)

Redmi 2 supports quick charge 2.0, however the charger sent by xiaomi does not have this technology. And yes, that support in the kernel is secure.

NaassomDourado said:
Redmi 2 supports quick charge 2.0, however the charger sent by xiaomi does not have this technology. And yes, that support in the kernel is secure.
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ah, thanks a lot i was a bit worried about that

NaassomDourado said:
Redmi 2 supports quick charge 2.0, however the charger sent by xiaomi does not have this technology. And yes, that support in the kernel is secure.
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The Redmi 2 battery only accepts 5V/1.0A, so QC 2.0 isn't supported by hardware, altought the SD410 supports it.

Dan_Jacques said:
The Redmi 2 battery only accepts 5V/1.0A, so QC 2.0 isn't supported by hardware, altought the SD410 supports it.
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Yes, but using a quick charge charger makes the battery charge 1A / h constant, which makes the charging much faster than using the charger sent by xiaomi

Does Redmi 3s support Quick Charge?

The Xiaomi India website doesn't mentions that it supports Qualcomm Quick Charge but there are some people who are saying that it supports Q.C. 1.0/2.0 and some even saying that it supports 3.0.
And the Xiaomi website states that “[it] Comes with 5V/2A quick charging to charge and go with minimal downtime.”. Interestingly enough, Quick Charge 1.0 also charges at 5V/2A.
Has anyone tried charging with Qualcomm Certified chargers and is there any long term issue like battery inflating, poor battery backup, etc?
And if it does work then what are the things I should be looking in a charger when buying apart from Qualcomm certified chargers?

The soc of our device does support quick charge, but to enable it, we need a suitable kernel

I think it's enabled on MIUI developer rom.

Vortex9p9 said:
I think it's enabled on MIUI developer rom.
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Yes. Some say that latest beta update miui 8.2.5 has total charging period of 2.5hr.

As per the super moderator in MIUI forum the Dev rom supports QC 2.0 and charging time is less than 2 Hrs.

Quick Charge Oreo Update

Hello, i have an aukey usb quick charge 3 charger and now that i have a new xiaomi mi a1 i bought a nillkin usb type c 3.0 quick charge cable.
Even tho i have a charger and a data cable compatible with quick charge, when i charge it says "charging", not fast charging, i don't even sense a notisable decrease of charging time.
So i am doing somethong wrong? It is suppose that with oreo update quick charge is aviable on the mi a1.

tired reply , please search.

The 'fast charging' message was a bug. Congrats. U just waste money

Sad to break it to you, but the phone doesn't support Quick Charge 3.0

Who except pajeet analphabete on Indian blog said it was supposed to get QC?

I've read that one of the Oreo beta builds had quick charging enabled by mistake and Xiaomi removed it later, this is when/where rumors started. No idea if that's true though..

There is a quite big difference between "fast charge" and "quick charge" (by qualcomm). Quick Charge will not be enabled on those phones as qualcomm wants money for each device that uses it. However in oreo we have "fast charge" enabled.... also to have quick charge you'll need charger that has the qualcomm chip in it... and for the fast charge again you'll need charger that supports fast charge(basically that it is more powerful - 34W and up).
And remember it is android one device so it is as close to the aosp as possible and many of the settings are up to google to change (like the cam api 2)

I don't get the fuss around this "fast" charge "enabled" thingy. I'm using a nexus 5x charger since day 0 (back when only displayed "charging") because i've bought it as a replacement for my nexus 5x.
So, the output of the 5x charger has 3A . Now pay attention, the A1 (at least mine and i don't think i got a special edition) was charging with 2A out of the box (nougat) and also after oreo update, period.

Mi a1 does have sd625 which supports fast charging but xiaomi hasnt enabled it cause enabling that will make xiaomi pay some loyalty to snapdragon. So they didn't enable it. NO FAST CHARGING ON MI A1

This thread reminds me of countles indian videos trying to prove redmi phones support fast charging by comparing charging speeds between stock 1A chargers an qc2/3 ones. Good stuff

With custom roms and root, could you re-enable it? Yes.

justanpotato said:
With custom roms and root, could you re-enable it? Yes.
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nope.

pendragon666 said:
This thread reminds me of countles indian videos trying to prove redmi phones support fast charging by comparing charging speeds between stock 1A chargers an qc2/3 ones. Good stuff
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Redmi note 5 has the icon of fast charging with micro usb, but Mi A1 with usb C does not, lol. My phone Mi A1 charges fully within 1 hour from 1%(would say... 40min) with an aukey QC 3.0 and a blitzwolf amp usb cable.

bastienff said:
Hello, i have an aukey usb quick charge 3 charger and now that i have a new xiaomi mi a1 i bought a nillkin usb type c 3.0 quick charge cable.
Even tho i have a charger and a data cable compatible with quick charge, when i charge it says "charging", not fast charging, i don't even sense a notisable decrease of charging time.
So i am doing somethong wrong? It is suppose that with oreo update quick charge is aviable on the mi a1.
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Don't worry about people bragging ie lying about how their phones charge up faster with quick charge. Or some sort of forced charging is going on which isn't good for the lifespan of the battery. Samsung allows users to turn off fast charging in the settings to reduce excessive heat which says something about fast charging.

So you guys are saying it doesn't support Quick Charge™. But I just downloaded CPU-Z for fun and it read the fact that the MI A1 - My unit at least runs Snapdragon 626 as opposed to what GSMArena says (625) and according to this article it is supposed to support it. I don't have a fast enough charger - Never thought I'd need one since the phone supposedly doesn't support fast charging, but if it runs 626 it might. If I can edit this post I'll add a screenshot from the phone in a moment.
Can't seem to add the screen shot, so here's the link to it:
https://imgur.com/a/PhgdBME

justanpotato said:
With custom roms and root, could you re-enable it? Yes.
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yes. I'm using a motorola turbo power charger and a magisk module 'force fast charge'. getting ~2000mA.

The phone has the available hardware for fast charging but xiaomi disabled it, it should be coming soon in oreo or pie

meltbanana said:
yes. I'm using a motorola turbo power charger and a magisk module 'force fast charge'. getting ~2000mA.
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I tried that module, but don't see any difference. Plus, I don't see the force fast charge folder in solid explorer anywhere!

WhatzIt2Ya said:
I tried that module, but don't see any difference. Plus, I don't see the force fast charge folder in solid explorer anywhere!
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depends on your charger. :good:

Dang, I JUST BOUGHT 5. QC3 chargers!!!
... I just read on some other forms that the mean one supports fast charging qc3 charger I bought a bunch of chargers. does anyone know will queue c3 chargers work on all types of phones and devices even if they don't have any Qualcomm chip in them will they still charge at your 1 amp or 2 amp speed?? and that's question does anybody know what happened to the license agreement between called come and show me about working out the deal to get the Alt-X low-latency and the Ap-X codec license agreement???

Best kernel for Mi A1

Hello everyone, which kernel is the best for Mi A1 ?? i need least is support fast charge
thanks everyone :laugh:

S_ATTT said:
Hello everyone, which kernel is the best for Mi A1 ?? i need least is support fast charge
thanks everyone :laugh:
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Franko kernel has good reviews

gedamsandeep said:
Franko kernel has good reviews
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do Franko have fast charge??

S_ATTT said:
do Franko have fast charge??
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I hv't use yet. But yes I hv seen it on YouTube that with Franko kernel mi A1 take 30 minutes less time to charge from 0 to 100% compare to official stock kernel.

gedamsandeep said:
I hv't use yet. But yes I hv seen it on YouTube that with Franko kernel mi A1 take 30 minutes less time to charge from 0 to 100% compare to official stock kernel.
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i think that is lie ?

Void kernel for stock
Moun kernel for custom/treble.
Wysłane z mojego Pixel XL przy użyciu Tapatalka

S_ATTT said:
Hello everyone, which kernel is the best for Mi A1 ?? i need least is support fast charge
thanks everyone :laugh:
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The MiA1 wasn't designed for fast charge so the battery will probably fail sooner.

barrack1 said:
The MiA1 wasn't designed for fast charge so the battery will probably fail sooner.
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This is not true at all. There's no special "quick charge battery" installed in phones that support quick charge. The SD625 supports QC 3.0 (it's listed right on the official qualcomm website), Xiaomi just decided to exclude the functionality in their kernel. That being said, I would make sure the phone is placed in an open area to make sure heat is dissipated well while quick charging. I would also only use quick charging on an as need basis. Putting it on a quick charger at the end of the day, every single day, just to sit at 100% most of the night is kinda pointless. A slower charger would be a better choice for over night charging if you're really concerned about battery health. These same tips would also apply to phones with QC support OOB.

canoo said:
This is not true at all. There's no special "quick charge battery" installed in phones that support quick charge. The SD625 supports QC 3.0 (it's listed right on the official qualcomm website), Xiaomi just decided to exclude the functionality in their kernel. That being said, I would make sure the phone is placed in an open area to make sure heat is dissipated well while quick charging. I would also only use quick charging on an as need basis. Putting it on a quick charger at the end of the day, every single day, just to sit at 100% most of the night is kinda pointless. A slower charger would be a better choice for over night charging if you're really concerned about battery health. These same tips would also apply to phones with QC support OOB.
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Wrong. Fast charging is not just a function of the SOC but requires a different battery chemistry and improved charging algorithms built into the battery and charger itself. Heat is not the only problem with fast charging as you are alluding. Hammering the battery with a 'forced' fast charge is a good recipe for killing the battery prematurely.