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Alright, can anyone confirm this for me? Wait, lemme start at the beginning...
So I was reading this Android Police article, hoping to get some quoting material for those times when a member thinks USB Fast Charge is the same as Qualcomm Quick Charge 2.0...
http://www.androidpolice.com/2015/06/12/quick-rapid-turbo-and-fast-charging-explained-what-you-need-to-know-about-charging-your-smartphone/
Y'know, all those times people ask a kernel dev "Why isn't Fast Charge speeding up my charging?" so I could swoop in and crush their dreams with "Fast charge means only more current draw when USB charging via PC. You're thinking Qualcomm Quick Charge 2.0, which needs hardware support, so ain't gonna happen."
But turns out, the Mi3/Mi4 DOES have the supported hardware (for Quick Charge 2.0 mind you, not v1.0 like in the Nexus 5)
https://www.qualcomm.com/documents/quick-charge-device-list
(Official document from Qualcomm listing the Xiaomi devices amongst the handful of QC 2.0 devices)
So can someone tell me if this needs kernel support? Or can I just buy a Quick Charger off Amazon and enjoy the benefits?
Or if this is at all LEGIT?
The Dork Knight Rises said:
Alright, can anyone confirm this for me? Wait, lemme start at the beginning...
So I was reading this Android Police article, hoping to get some quoting material for those times when a member thinks USB Fast Charge is the same as Qualcomm Quick Charge 2.0...
http://www.androidpolice.com/2015/06/12/quick-rapid-turbo-and-fast-charging-explained-what-you-need-to-know-about-charging-your-smartphone/
Y'know, all those times people ask a kernel dev "Why isn't Fast Charge speeding up my charging?" so I could swoop in and crush their dreams with "Fast charge means only more current draw when USB charging via PC. You're thinking Qualcomm Quick Charge 2.0, which needs hardware support, so ain't gonna happen."
But turns out, the Mi3/Mi4 DOES have the supported hardware (for Quick Charge 2.0 mind you, not v1.0 like in the Nexus 5)
https://www.qualcomm.com/documents/quick-charge-device-list
(Official document from Qualcomm listing the Xiaomi devices amongst the handful of QC 2.0 devices)
So can someone tell me if this needs kernel support? Or can I just buy a Quick Charger off Amazon and enjoy the benefits?
Or if this is at all LEGIT?
Click to expand...
Click to collapse
In fact I own an Mi4 which comes with a 2A charger that is normally supporting quick charge 2.0.
With MIUI it's charging 1.8A (of course 1.8A is around 2A minus phone consumption)
On all custom rom it's just charging max 1.3A with about same consumption, or even less.
So Mi4 support quick charge 2.0 with MIUI but not with any custom rom or kernel.
Anything regarding Mi3 ??
volcano619 said:
Anything regarding Mi3 ??
Click to expand...
Click to collapse
I guess it's the same. Snapdragon 800 and 801 are really close each other.
Envoyé de mon MI 4 en utilisant Tapatalk
Does anyone have a quick Charger 2.0 and a mi3 ?
Bitti09 said:
Does anyone have a quick Charger 2.0 and a mi3 ?
Click to expand...
Click to collapse
I do have a Bavin 2.0 A charger and as mentioned it is obly 1.3A below
Sent from my MI 3W using XDA Free mobile app
RairuLyle said:
I do have a Bavin 2.0 A charger and as mentioned it is obly 1.3A below
Sent from my MI 3W using XDA Free mobile app
Click to expand...
Click to collapse
Put the following line into build.prop , reboot and test if qc works:
Code:
persist.usb.hvdcp.detect=true
Bitti09 said:
Put the following line into build.prop , reboot and test if qc works:
Code:
persist.usb.hvdcp.detect=true
Click to expand...
Click to collapse
In a minute! Currently crimping network cables here.
Sent from my MI 3W using XDA Free mobile app
In the attachment 1 that is the stock charger of mi3 , in the attachment 2 that is the current of quick charge without the build.prop line. And in the last attachment that is that current with the buil.prop line.
In conclusion, without the build.prop line the lcd becomes super sensitive but higher current, with the build.prop line the lcd is fine but lower current than before
Sent from my MI 3W using XDA Free mobile app
RairuLyle said:
In the attachment 1 that is the stock charger of mi3 , in the attachment 2 that is the current of quick charge without the build.prop line. And in the last attachment that is that current with the buil.prop line.
In conclusion, without the build.prop line the lcd becomes super sensitive but higher current, with the build.prop line the lcd is fine but lower current than before
Sent from my MI 3W using XDA Free mobile app
Click to expand...
Click to collapse
hm, ivan commentetd this build.prop line as "Quick Chager" . the rest of quick charge is already in our device&vendor trees.
Bitti09 said:
hm, ivan commentetd this build.prop line as "Quick Chager" . the rest of quick charge is already in our device&vendor trees.
Click to expand...
Click to collapse
Must be rom related? In miui i can get 1500+ but lcd gone crazy and in stock i got 1000 below. In ivan i can get around 1900+ average without the lcd going crazy
Sent from my MI 3W using XDA Free mobile app
Riichard63 said:
In fact I own an Mi4 which comes with a 2A charger that is normally supporting quick charge 2.0.
With MIUI it's charging 1.8A (of course 1.8A is around 2A minus phone consumption)
On all custom rom it's just charging max 1.3A with about same consumption, or even less.
So Mi4 support quick charge 2.0 with MIUI but not with any custom rom or kernel.
Click to expand...
Click to collapse
RairuLyle said:
I do have a Bavin 2.0 A charger and as mentioned it is obly 1.3A below
Sent from my MI 3W using XDA Free mobile app
Click to expand...
Click to collapse
I don't think a 2A charger is an actual Quick Charger. (Obv it charges quicker compared to 1A ones )
Apparently for Quick Charge 2.0 technology, your Wattage/Power input should be around 18W (wattage is found by multiplying the voltage written on charger, usually 5V with current you're getting in ampere). Quick Charge 1.0 supported upto 10W which we're gettng with the 2A chargers, but I think we need an actual Qualcomm certified Quick Charger (which allow currents of upto 3A apparently) to see QC 2.0 at work.
The Dork Knight Rises said:
I don't think a 2A charger is an actual Quick Charger. (Obv it charges quicker compared to 1A ones [emoji14])
Apparently for Quick Charge 2.0 technology, your Wattage/Power input should be around 18W (wattage is found by multiplying the voltage written on charger, usually 5V with current you're getting in ampere). Quick Charge 1.0 supported upto 10W which we're gettng with the 2A chargers, but I think we need an actual Qualcomm certified Quick Charger (which allow currents of upto 3A apparently) to see QC 2.0 at work.
Click to expand...
Click to collapse
Yes, this guy is right. 2A charger with 5V output is not a quick charger this guy talking about (Qualcomm Quick Charger 2.0). 12V charger output is.
Mi4 charger comes with 3 voltages 5V-2A, 9V-1.2A, 12V-1A...but maximum we get is 12*1=12W
Charging on xc kernel (cm ROM)
MI3 is not support any quickcharge. Even you use 2.0A charger, will give you same about 1.2A
What i know is i had Mi3 in past now i have Mi4 and mi4 comes with a Qualcomm Quick charger 12V-1A. It charges way too fast than Mi3 charger.
I use Mi3 Charger 5V-2A on Mi4 it took 2-3 Hours to get fully charged whereas Mi4 Charger takes 1-2 Hours to get fully charged.
It heats up a lot Charger + Mi4 Both
MI3W support QC 2.0, but needed QC 2.0 charger, for example Xiaomi Quick Charger 2.0 aka MDY-3-EB I`m found it here
Hey there guys
I am a audiophile who wanted to go for Lenovo P2 just for the sound quality it delivers through headphones. But due to my recent expenditure my budget has taken a hit and I don't think I will be able to afford it any more.
The other reason I wanted to go for it was because of it's fast charging capabilities. Redmi Note 4 runs the same Snapdragon 625, so I was wondering if I can use the Lenovo P2's original 12V charger to fast charge it. is it doable or will I be ruining the phone ?
Sometimes I still think I should still wait and just go for P2 its just that I just love my music ... But I love Xiaomi too, I have bought xiaomi phones for all my family members. I don't care about amoled display and stuff ... I just love quality music and good battery life and terrified of overcharging my phone through conventional slow chargers. (I never sleep with my phone on charge)
Sorry bro it won't work.....
The kernel of RN4 doesn't support fast charging(although the processor does)....
You will need to flash a custom kernel to enable fast charging just like radon kernel in case of RN3....
LucifeLMartelL said:
Hey there guys
I am a audiophile who wanted to go for Lenovo P2 just for the sound quality it delivers through headphones. But due to my recent expenditure my budget has taken a hit and I don't think I will be able to afford it any more.
The other reason I wanted to go for it was because of it's fast charging capabilities. Redmi Note 4 runs the same Snapdragon 625, so I was wondering if I can use the Lenovo P2's original 12V charger to fast charge it. is it doable or will I be ruining the phone ?
Sometimes I still think I should still wait and just go for P2 its just that I just love my music ... But I love Xiaomi too, I have bought xiaomi phones for all my family members. I don't care about amoled display and stuff ... I just love quality music and good battery life and terrified of overcharging my phone through conventional slow chargers. (I never sleep with my phone on charge)
Click to expand...
Click to collapse
Did u buy lenovo p2 and does it have audio issues with headphones...
I am having sennheiser urbanite on ear with 18 ohm impedance.
it will not work and even if it is enabled it could damage the phone because the components of the phone were never specced/made to support quick charging.
This is the first time that I'm reading about "overcharging" your phone over night. I've been using smartphones for 7 years now and have charged them overnight about 90% of the time, save for those days with heavy usage when I ran out of juice in less than 12 hours. Care to explain what you're talking about?
OP, wait for 8.5 MIUI update. it is going to enable QC/fast charging mode.
625 supports fast charging but it was not enabled by MIUI. In latest update 8.5 it's going to work as per features mentioned. Check Mi 5 device. for reference.
But "Mi 5" is already quick charge 3.0 enabled at the beginning, comes with a fast charger plug out of the box.. Just look for the specs everywhere
amit.tiger12 said:
OP, wait for 8.5 MIUI update. it is going to enable QC/fast charging mode.
625 supports fast charging but it was not enabled by MIUI. In latest update 8.5 it's going to work as per features mentioned. Check Mi 5 device. for reference.
Click to expand...
Click to collapse
asus535 said:
But "Mi 5" is already quick charge 3.0 enabled at the beginning, comes with a fast charger plug out of the box.. Just look for the specs everywhere
Click to expand...
Click to collapse
But OP using Redmi Note 4 Snapdragon Mido version.
Also SD 625 supports quick charge but it's not enabled by Xiaomi in MIUI.
http://en.miui.com/thread-642332-1-1.html
There was news earlier about MIUI 8.5 with fast charging support in MI forums. Also MIUI 9 coming in few weeks I don't know MIUI 9 will support fast charging or not.
amit.tiger12 said:
but op using redmi note 4 snapdragon mido version.
Also sd 625 supports quick charge but it's not enabled by xiaomi in miui.
http://en.miui.com/thread-642332-1-1.html
there was news earlier about miui 8.5 with fast charging support in mi forums. Also miui 9 coming in few weeks i don't know miui 9 will support fast charging or not.
Click to expand...
Click to collapse
dont be stupid. Mi5 was advertised with quickcharge
mido was not
redmi note 3 was not but when ppl enabled it they broke their phones
do your own research
---------- Post added at 10:43 PM ---------- Previous post was at 10:41 PM ----------
amit.tiger12 said:
but op using redmi note 4 snapdragon mido version.
Also sd 625 supports quick charge but it's not enabled by xiaomi in miui.
http://en.miui.com/thread-642332-1-1.html
there was news earlier about miui 8.5 with fast charging support in mi forums. Also miui 9 coming in few weeks i don't know miui 9 will support fast charging or not.
Click to expand...
Click to collapse
that link you post is for xiaomi phones that have quickcharge from factory dont be dumb
Global Beta Stable Rom MIUI 8 V8.5.3.0 MALMIED For Redmi 3S/Prime/Plus Rolling Out - Redmi 3S - Mi Community - Xiaomi - Mobile
http://c.mi.com/thread-266454-1-0.html
Please check comments..
They are talking about fast charging for this device.. Redmi 3s.
LucifeLMartelL said:
Hey there guys
I am a audiophile who wanted to go for Lenovo P2 just for the sound quality it delivers through headphones. But due to my recent expenditure my budget has taken a hit and I don't think I will be able to afford it any more.
The other reason I wanted to go for it was because of it's fast charging capabilities. Redmi Note 4 runs the same Snapdragon 625, so I was wondering if I can use the Lenovo P2's original 12V charger to fast charge it. is it doable or will I be ruining the phone ?
Sometimes I still think I should still wait and just go for P2 its just that I just love my music ... But I love Xiaomi too, I have bought xiaomi phones for all my family members. I don't care about amoled display and stuff ... I just love quality music and good battery life and terrified of overcharging my phone through conventional slow chargers. (I never sleep with my phone on charge)
Click to expand...
Click to collapse
You need to do some research regarding overcharging. Hopefully this article below will enlighten you.
https://www.google.com/amp/www.androidauthority.com/battery-myths-688089/amp/
Quickcharging isn't that good long term for your battery. While it's safe if it's supported officially for your phone, it really shortens the lifespan of your battery. The amount of cycles basically. It'll start to last less and less much faster than just charging it normally.
I know it's bad for Li-ion batteries, and I think it's even worse for li-polymers because they last even less cycles in the first place.
Does this support QC3? I have two chargers I bought for my HTC, wondering if they'll likely to work currently.
No that's a qualcomm product. This doesn't use a qualcomm CPU. It has a faster form of charging called Huawei Supercharge.
Ah, OK. I best look at other car chargers than
mushtafa said:
Ah, OK. I best look at other car chargers than
Click to expand...
Click to collapse
U have to use Huawei original super car charger for this to work. Quickcharge 3.0 can be use but only give you normal slow charge.
Tempted to get something like this that support both Qualcomm and Huawei standards - https://www.amazon.co.uk/dp/B076KR1N7F/
twe69 said:
Tempted to get something like this that support both Qualcomm and Huawei standards - https://www.amazon.co.uk/dp/B076KR1N7F/
Click to expand...
Click to collapse
Have to double check whether this support Huawei fast charge or super charge.
Jamestdd said:
Have to double check whether this support Huawei fast charge or super charge.
Click to expand...
Click to collapse
Lol didn't know there were 2 standards. Cheers for the heads up. If you see one that supports the latest for both Huawei and Qualcomm please post it.
twe69 said:
Lol didn't know there were 2 standards. Cheers for the heads up. If you see one that supports the latest for both Huawei and Qualcomm please post it.
Click to expand...
Click to collapse
Fast charge is for p9 standard. Since mate 9 they change it to super charge. I using original Huawei super charge car charger. Bought it for around Malaysia ringgit 200. Around usd50.
https://www.amazon.co.uk/Huawei-Super-Charge-Charger-Cable-Black/dp/B06XQTYRC4
This is what's needed for the P20
DaveP2611 said:
https://www.amazon.co.uk/Huawei-Super-Charge-Charger-Cable-Black/dp/B06XQTYRC4
This is what's needed for the P20
Click to expand...
Click to collapse
Yeh just seems a good idea to have one that also supports Quick Charge as other family members have Samsung devices with Qualcomm processors.
Anker Powerport Speed 5 is working perfectly in Super Charge on the 2 USB Quick Charge 3 and Super Charge (slower) on the 3 other USB slots
Does it detect as fast charge or slow charge on the Anker powerport?
i'm using a Mi powerbank pro, it supports QC3.0 and also huawei fast charge, not as fast as super charge, but it'll get the job done.
darren486 said:
i'm using a Mi powerbank pro, it supports QC3.0 and also huawei fast charge, not as fast as super charge, but it'll get the job done.
Click to expand...
Click to collapse
Is that the first generation or the second generation?
Original charger hits 1700mA while Quick Charger 3.0 hits 2300mA. Screenshots below. I'd like to know if anyone else has done a similar test so we can compare results. I bought a (supposedly) Quick Charger 3.0. The results are obviously better but I'm not sure if its supposed to be higher or not.
SD660 can even do Quick Charge 4, but for Mi A2 officially only in india.
https://www.qualcomm.com/products/snapdragon-660-mobile-platform
Global version might need a patch.
This this means that we can use Quick Charger 3.0 or 4.0 without harming phone's battery?
crazykas said:
This this means that we can use Quick Charger 3.0 or 4.0 without harming phone's battery?
Click to expand...
Click to collapse
Mi A2 has official support for QC 3.0 (and 4.0 in India only). Of course you can use it without any harm.
MaKTaiL said:
Mi A2 has official support for QC 3.0 (and 4.0 in India only). Of course you can use it without any harm.
Click to expand...
Click to collapse
What brand/ charger are you using for QC 3.0?
That was my doubt too, the global My A2, perfectly compatible with QC3.0, without causing any damage to the equipment, that was my fear, but now ready, subject clarified ... I use QC3.0 Lenuo.
regards,
JC
jcunltd said:
That was my doubt too, the global My A2, perfectly compatible with QC3.0, without causing any damage to the equipment, that was my fear, but now ready, subject clarified ... I use QC3.0 Lenuo.
regards,
JC
Click to expand...
Click to collapse
Can you post a screenshot of Ampere with both chargers so we can compare?
Is this compatible Anker Quick Charge 3.0 ?
crazykas said:
Is this compatible Anker Quick Charge 3.0 ?
Click to expand...
Click to collapse
I have this charger and it is compatible yes.
mauley said:
I have this charger and it is compatible yes.
Click to expand...
Click to collapse
Can you post a screenshot with Ampere working while you charge with your 3.0 charger so we can compare results?
mauley said:
I have this charger and it is compatible yes.
Click to expand...
Click to collapse
Thanks man
When charging with quick charge 3.0 does Mi A2 shows any quick charge sign?
Sent from my Mi A2 using Tapatalk
ilyas111 said:
When charging with quick charge 3.0 does Mi A2 shows any quick charge sign?
Sent from my Mi A2 using Tapatalk
Click to expand...
Click to collapse
Yes, it says 'Charging rapidly' on the lockscreen
hugopg said:
Yes, it says 'Charging rapidly' on the lockscreen
Click to expand...
Click to collapse
It says the same thing when using the original charger though. How can we trust it?
MaKTaiL said:
It says the same thing when using the original charger though. How can we trust it?
Click to expand...
Click to collapse
with Ampere app......QC 3.0 should be floating between 2000-2300mA
this is from my QC 3.0 car charger
MaKTaiL said:
It says the same thing when using the original charger though. How can we trust it?
Click to expand...
Click to collapse
Exactly! i really don't know how that works.. Does that mean that the original charger is somehow a quick charger?
Empirical evidence suggests that Oreo seems to show "charging rapidly" anytime amperage is above 1 amp or so, it has nothing to do with using a quick charger or the original brick supporting quick charge.
hacktek said:
Empirical evidence suggests that Oreo seems to show "charging rapidly" anytime amperage is above 1 amp or so, it has nothing to do with using a quick charger or the original brick supporting quick charge.
Click to expand...
Click to collapse
No guys. I found:
0 - 999 mA = charging slowly
1000 - 1499 mA = charging
>> 1500 = Charging rapidly
Not sure if MiA2 use the same parameter.
Nice, I was gonna say 1500 cause that was kind of what I remembered but wasn't totally sure. 1.5A is typically rapid enough to charge with relative speed even while the device is in use which is probably why that was picked. I agree that they should probably provide a reading above 2A to signify quick charging as "charging rapidly" is definitely confusing.
Screenshot Xiaomi A2 India Version ( QuickCharger 4.0)
1. Can I use iPhone's 5W charger adapter on Mi 9?
Can someone let me know if this is okay? Will it ruin my battery?
2. Also, what is your experience using the 18W charger that came with the phone? Did you notice worse battery life overtime?
pleasehelpmemi9 said:
1. Can I use iPhone's 5W charger adapter on Mi 9?
Can someone let me know if this is okay? Will it ruin my battery?
Click to expand...
Click to collapse
Yes. It won't ruin your battery but you will experience long charging time.
pleasehelpmemi9 said:
2. Also, what is your experience using the 18W charger that came with the phone? Did you notice worse battery life overtime?
Click to expand...
Click to collapse
Pretty good. Fast charging without making the phone too hot. Worse battery life over time is a guarantee in all Lithium batteries, quick charge won't make it degrade any faster. The protocol isn't simply blasting the battery with high power until full.