LeEco Pro3 quick charge problem - LeEco Le Pro3 Questions & Answers

On LEX720 (the sticker on the box says so) with EUI I am able to achieve 9v 2.45A charging. But with LineageOS I seem to be limited to 9V 1.65A. Also EUI only achieves 2.45A when the device is turned off, otherwise behaves same as LineageOS.
On my Max2, I get 9V 2.5+A speeds Do you see this also? See: https://jira.lineageos.org/browse/BUGBASH-1453
How can this be fixed?
UPDATE: Added photos from Pro3 and Max2 with charging speeds using same charger/cable.

yurtesen said:
With EUI I am able to achieve 9v 2.45A charging. But with LineageOS I seem to be limited to 9V 1.65A. Also EUI only achieves 2.45A when the device is turned off, otherwise behaves same as LineageOS.
On my Max2, I get 9V 2.5+A speeds Do you see this also? See: https://jira.lineageos.org/browse/BUGBASH-1453
How can this be fixed?
Click to expand...
Click to collapse
What pro3 model do you have?
Sent from my LEX727 using xda premium

mchlbenner said:
What pro3 model do you have?
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Click to collapse
The box says LEX720, but if I remember correctly when in TWRP windows thinks it is LEX727. I think there shouldn't be any difference at charging right?
It is able to do 9V 2.45A when it is turned off. (attached pictures to the first post) and my Max2 can do a whopping 9V 2.54A when it is on which converts into 4000mA in Ampere.
The difference is huge, something must be wrong somewhere?

This my take you could replace USB cable their known for being very cheap.
I don't think quick charge works on mine at least the they claim it charges.
I found different roms charge at different speeds.
Sent from my LEX727 using xda premium

mchlbenner said:
This my take you could replace USB cable their known for being very cheap.
I don't think quick charge works on mine at least the they claim it charges.
I found different roms charge at different speeds.
Click to expand...
Click to collapse
@mchlbenner If you know that it does not function, then please vote for the bug report -> https://jira.lineageos.org/browse/BUGBASH-1453 <- it could be fixed. Because it works with EUI when device is offline, it is proof that hardware works and it is a software issue.
Cable works fine on EUI when device is off, and also with Max2. Besides, I tried with other cables too, same result. I took pictures with same cable, just for proof of concept. The problem is not the cable. The way that quick charge works does NOT require special or expensive cables. But, for you to know that it works, you need to use some software such as Ampere or hardware USB power meter.
I already proved that the hardware supports quick charge perfectly and it can work exactly as it should. So, there is a software problem/tweak somewhere, which can be fixed. It is not a matter of ROMs working differently etc. I am interested in why this is happening and what can we do to turn it on Pro3 same as it works on Max2.

yurtesen said:
On LEX720 (the sticker on the box says so) with EUI I am able to achieve 9v 2.45A charging. But with LineageOS I seem to be limited to 9V 1.65A. Also EUI only achieves 2.45A when the device is turned off, otherwise behaves same as LineageOS.
On my Max2, I get 9V 2.5+A speeds Do you see this also? See: https://jira.lineageos.org/browse/BUGBASH-1453
How can this be fixed?
UPDATE: Added photos from Pro3 and Max2 with charging speeds using same charger/cable.
Click to expand...
Click to collapse
I have the same amperage on my phnr. 2980 max on Oreo Resurrection rom.
I only had a higher input, around 4000 mA with the resurrection Nougat rom.

Oel said:
I have the same amperage on my phnr. 2980 max on Oreo Resurrection rom.
I only had a higher input, around 4000 mA with the resurrection Nougat rom.
Click to expand...
Click to collapse
@Oel it is strange since, afaik resurrection rom is based on lineageos. But I installed now RR-N-v5.8.5-20171022-zl1-Final.zip and quick charge works perfectly! I am getting 9v 2.5A. I will extract some information and add to my bug report. Perhaps the feature was lost at some point and nobody recognized it. Thanks for the information, maybe it can be fixed!
If you are interested in getting the issue fixed, please vote for the bug report https://jira.lineageos.org/browse/BUGBASH-1453
@mchlbenner I attached a video to the bug report I have made, you can see how it is suppose to work if you check it out.

My fault.
I had around 4000 mA on nougat version of paranoid rom. It was about the kernel. When i flashed the paranoid kernel into resurrection, the charging amp are going higher, up to 3980 mA.

Request for help - LEX727 stopped charging
mchlbenner said:
This my take you could replace USB cable their known for being very cheap.
I don't think quick charge works on mine at least the they claim it charges.
I found different roms charge at different speeds.
Sent from my LEX727 using xda premium
Click to expand...
Click to collapse
Hello My LeEco LePro3 LEX727 - purchased in the USA during 2016 Thanks Givings Sales at LeEco Website.
My phone stopped charging on Nov 1st, 2018 and Le Eco Technical Support in the US have closed down.
Do you have any suggestion to solve the charging problem?
If I try a third party charger available in Costco -
Ubio Labs USB Type-C Charging Kit, will that solve the charging problem?
AB

Related

VOOC Rapid Charger confirmed working!!!

I plugged my OPO into my Find 7a VOOC charger at 1:04AM and I was at 8%, at 1:24 I was up to 29% now at 1:32 I'm at 36% so it is charging at 1% a minute And just so you guys know the quick charge will charge quick until the phone gets to a certain temp and then charges at normal rate. I guess this is to prevent heat damage
Heeey im so glad to know that!, but I worry about being damaging the battery by charging it that way, do you think it's possible??
borrego20 said:
Heeey im so glad to know that!, but I worry about being damaging the battery by charging it that way, do you think it's possible??
Click to expand...
Click to collapse
I think that's what the temp check is for.. when it warms up to a certain temp it charges at a normal rate I believe to prevent damage
graffixnyc said:
I think that's what the temp check is for.. when it warms up to a certain temp it charges at a normal rate I believe to prevent damage
Click to expand...
Click to collapse
I wonder then, if, in theory, cooling the device with some sort of water-proof ice-pack might mean you could quick-charge it all the way.
So the VOOC charger has a standard MicroUSB port? I wonder if maybe you can grab an app or a widget to tell us what its actual power output is? I use a 2A charger with my N5 and it charges pretty damn fast. Not 75% in 30 minutes as the VOOC charger claims to charge, but pretty quick nonetheless.
LiquidSolstice said:
So the VOOC charger has a standard MicroUSB port? I wonder if maybe you can grab an app or a widget to tell us what its actual power output is?
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Click to collapse
I believe that the Oppo charger puts out 4.1A. I don't remember exactly though.
Harfainx said:
I believe that the Oppo charger puts out 4.1A. I don't remember exactly though.
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Click to collapse
Actually it's 4.5A, but based on OP info (1%/min charge rate) I think Opo is limited to something about 2A/hour. Probably a 2A charger will charge at the same rate as Find 7 charger (4.5A).
My S4 can fast charge up to 1.9A/hour. So in an hour and half I have full battery.
LiquidSolstice said:
I wonder then, if, in theory, cooling the device with some sort of water-proof ice-pack might mean you could quick-charge it all the way.
So the VOOC charger has a standard MicroUSB port? I wonder if maybe you can grab an app or a widget to tell us what its actual power output is? I use a 2A charger with my N5 and it charges pretty damn fast. Not 75% in 30 minutes as the VOOC charger claims to charge, but pretty quick nonetheless.
Click to expand...
Click to collapse
It has 7 pins, not 5 as standard micro USB.
LiquidSolstice said:
I wonder then, if, in theory, cooling the device with some sort of water-proof ice-pack might mean you could quick-charge it all the way.
So the VOOC charger has a standard MicroUSB port? I wonder if maybe you can grab an app or a widget to tell us what its actual power output is? I use a 2A charger with my N5 and it charges pretty damn fast. Not 75% in 30 minutes as the VOOC charger claims to charge, but pretty quick nonetheless.
Click to expand...
Click to collapse
It's not standard.
As stated by another poster, 2 extra pins (probably to deal with current limits) and also uses two pins (probably D+ and D-) to communicate between charger and phone. (This is very different from normal chargers, which just short D+ and D- together)
That said... IIRC the VOOC charging is supposed to be faster than what graffixnyc indicated. It may be only going at 2A in the OPO. I need to look through the kernel dmesg of my f7a to see if there are any "telltale" signs of VOOC being used in a dmesg.
You could install something like Battery Monitor Widget and see how many amps it's pulling.
Sent from my HTC VLE_U using XDA Premium 4 mobile app
Is there any way of obtaining the VOOC Charger without having to buy the Find 7a bundled with it?
Expliciate said:
Is there any way of obtaining the VOOC Charger without having to buy the Find 7a bundled with it?
Click to expand...
Click to collapse
Don't think so, but why would you want to buy it if not to use with Find 7?
It's a 2A charger for other devices.
extrem0 said:
Don't think so, but why would you want to buy it if not to use with Find 7?
It's a 2A charger for other devices.
Click to expand...
Click to collapse
Well because it's confirmed to be working for the OPO?
And for the OPO when it is available?
Expliciate said:
Well because it's confirmed to be working for the OPO?
And for the OPO when it is available?
Click to expand...
Click to collapse
It's confirmed to be working, but I doubt it's working with Opo the way it works with Find 7a.
I bet your Note 3 charger charges OPO at the same rate/time that Find 7a charger does.
There is always Qualcomm quick charge (2.0) which is supported by Snapdragon 801.
extrem0 said:
It's confirmed to be working, but I doubt it's working with Opo the way it works with Find 7a.
I bet your Note 3 charger charges OPO at the same rate/time that Find 7a charger does.
Click to expand...
Click to collapse
The Find 7a charger utilizes 7 pins vs the 5 pin standard for the micro USB.
This was found to exist in both the Find 7a and OPO (Reviewed Samples).
Though Carl stated on reddit that the production model will not have the special "7 pins", the sampled OPO devices did and was shown in a teardown.
So for one, the Note 3 charger is distinctly different than the Find 7a charger.
And two, though the sample OPO devices may have 7 pins, the production models may not.
Just hoping that the production models have 7 pins to utilize the rapid charge feature.
EDIT:
extrem0 said:
Actually it's 4.5A, but based on OP info (1%/min charge rate) I think Opo is limited to something about 2A/hour. Probably a 2A charger will charge at the same rate as Find 7 charger (4.5A).
My S4 can fast charge up to 1.9A/hour. So in an hour and half I have full battery.
It has 7 pins, not 5 as standard micro USB.
Click to expand...
Click to collapse
You've also stated that it has 7 pins previously, not sure how you concluded that the Note 3 charger is identical to the Find 7a's
Entropy512 said:
It's not standard.
As stated by another poster, 2 extra pins (probably to deal with current limits) and also uses two pins (probably D+ and D-) to communicate between charger and phone. (This is very different from normal chargers, which just short D+ and D- together)
That said... IIRC the VOOC charging is supposed to be faster than what graffixnyc indicated. It may be only going at 2A in the OPO. I need to look through the kernel dmesg of my f7a to see if there are any "telltale" signs of VOOC being used in a dmesg.
Click to expand...
Click to collapse
The USB ports on both devices look exactly the same.. there is a post on the OPO forums where a guy confirms (from a teardown) the OPO has the extra pins. However, I do notice obviously that it's not charging at the rate it charges the 7a but it's charging quicker with the VOOC charger than it charges my m8. @Entropy512 is it possible that there is also something in the software that fully enables VOOC charging?
Expliciate said:
The Find 7a charger utilizes 7 pins vs the 5 pin standard for the micro USB.
This was found to exist in both the Find 7a and OPO (Reviewed Samples).
Though Carl stated on reddit that the production model will not have the special "7 pins", the sampled OPO devices did and was shown in a teardown.
So for one, the Note 3 charger is distinctly different than the Find 7a charger.
And two, though the sample OPO devices may have 7 pins, the production models may not.
Just hoping that the production models have 7 pins to utilize the rapid charge feature.
EDIT:
You've also stated that it has 7 pins previously, not sure how you concluded that the Note 3 charger is identical to the Find 7a's
Click to expand...
Click to collapse
You're right, I just saw some pictures of teardown and it has 7 pins indeed. But based on OP charging rate (1%/min), I concluded it isn't working like VOOC, which charges 75% in 30 mins (2.50%/min).
Oppo Find 7/a manual says that the charger can be used in other devices and it will be limited to 2A unless it has a VOOC chip if I remember correctly. So, this is why I think your Note 3 charger (2A) is equal to Oppo 7/a charger (4.5A with VOOC support and 2A for others) when used in Opo.
Besides, Oneplus didn't make any advertising expliciting VOOC support to Opo. I think it's a very rare feature in mobile world to be hidden.
graffixnyc said:
The USB ports on both devices look exactly the same.. there is a post on the OPO forums where a guy confirms (from a teardown) the OPO has the extra pins. However, I do notice obviously that it's not charging at the rate it charges the 7a but it's charging quicker with the VOOC charger than it charges my m8. @Entropy512 is it possible that there is also something in the software that fully enables VOOC charging?
Click to expand...
Click to collapse
I think Opo has fast charging on by default. M8 might charges at about 1500mah while Opo charges at 1900mah (I'm just supposing).
Try to enable fast charge to your m8. I believe it will charge as fast as your Opo.
extrem0 said:
Don't think so, but why would you want to buy it if not to use with Find 7?
It's a 2A charger for other devices.
Click to expand...
Click to collapse
no,JUST USE IN FIND7 .BECAUSE FIND7‘s battery has eight metal contacts
---------- Post added at 11:43 PM ---------- Previous post was at 11:38 PM ----------
liuxinyu12322 said:
no,JUST USE IN FIND7 .BECAUSE FIND7‘s battery has eight metal contacts
Click to expand...
Click to collapse
you can browse it
www。citnews。com。cn/selected/201403/212086.html
graffixnyc said:
The USB ports on both devices look exactly the same.. there is a post on the OPO forums where a guy confirms (from a teardown) the OPO has the extra pins. However, I do notice obviously that it's not charging at the rate it charges the 7a but it's charging quicker with the VOOC charger than it charges my m8. @Entropy512 is it possible that there is also something in the software that fully enables VOOC charging?
Click to expand...
Click to collapse
There are some software changes, and in fact Oppo tweaked some of those settings on the F7a: https://github.com/oppo-source/Find...728e48ea4f50baaf1fd9e51cc7ae59d362788e#diff-5
hey... wait a second...
Those changes aren't for the F7a at all! The OnePlus Edition is the one with a PIC1508, and in the file with the compiled firmware - that's the Find7 OnePlus Edition section of the file!
It looks like in the original PIC firmware, the current setting was reduced for the Find7OP and they increased it for the OP with that patch - which might not be in the current CM11s build.
I'd do:
A/B comparison of the VOOC charger with a standard 2A MicroUSB charger
I might be able to get you a mostly-working Omni build later this week since the devices are so similar to play with, that will include the above Oppo tweak to the Find7OP
@Entropy512
How about the modem hardware(baseband), can we flash find7a on find7po and the reverse?
Demetris said:
@Entropy512
How about the modem hardware(baseband), can we flash find7a on find7po and the reverse?
Click to expand...
Click to collapse
Derek ross did it on his Find 7a but I wouldn't recommend it personally.

2 month old ZTE AXON 7 won't quick charge anymore.

My phone is two months old and has ceased to quick-charge. Actually, 90% of the time, it will only charge when powered down. I use the factory charger and cable but get a message that I need to use the original charger and cable. Catch 22?
I bought it at Best Buy so I took it back to them this evening. My charger is fine as is my cable. Best Buy confirmed that my issue is a factory defect and politely sent me on my way. I take care of my phones if nothing more than the fact that I've had to replace micro USB ports in the past. The weird thing is that when it charges powered down, it seems to refresh to full battery very quickly.
Has anyone else had similar issues? If in fact, I do have to deal with ZTE, what has been members experience?
Thank you for letting me vent.
Sent from my SM-N915F using XDA-Developers Legacy app
U can test your charger using USB volt amp reader on another phone which supports quick charging.
If charger works as it should then u need to test your phone with multimeter to see how much current it draws while phone is powered off without charger (battery only).
But that means you need to open 2 month old phone which i dont recommend if u have warranty.
Axon 7 draws about 2.66-2.68 amps while in quick charging mode. Volts i forgot but i think it was 6v. I'm not in shop at the moment so i cant know exactly.
But for amps i remembered.
Wallor77, thank you for your reply. My charger is in good working order. In fact, I have several 2.0 and 3.0 chargers. They all work fine on my Samsung Galaxy Note Edge. The Samsung displays "Fast Charger Connected" on the lock screen.
Now my ZTE Axon 7 will not charge while it is powered up. As soon as I turn it off, it charges just fine. This is really annoying!
Sent from my ZTE A2017U using XDA-Developers Legacy app
If your charger and cable are OK, perhaps have you recently installed an application which limits the power. Such methods exists in some antivírus to preserve the health of the battery. It's just an idea.
Envoyé de mon ZTE A2017G en utilisant Tapatalk
Same thing there. If it charges normally while power off u need to see how much amps. USB volt amp reader is a good little device. I recommend for everyone to get one. It cost about 15 bucks. From there it's all about elemination process to diagnose proper issue
wallor77 said:
Same thing there. If it charges normally while power off u need to see how much amps. USB volt amp reader is a good little device. I recommend for everyone to get one. It cost about 15 bucks. From there it's all about elemination process to diagnose proper issue
Click to expand...
Click to collapse
I second this. But $15?! You can get them for about $5 on aliexpress!
U have USB volt amp reader with both volt units, amp units, time duration and mAh over time charged value. But 15$ was about avarage price listing. I'm sure there is cheaper as well.
UPDATE: 6/2/17
I ended up sending my phone to the ZTE repair center in TX. It took about 3 weeks to get it back. There was no explanation of what was repaired and I received my original phone; not a refurbished one. All I know was that it was covered.
Sent from my ZTE A2017U using XDA-Developers Legacy app
I am in the process of returning my 3rd Axon to ZTE. 2 of them have had this problem. It's definitely known because when I was talking to them and told them what was happening they just kind went "yeah ok" and fast tracked the whole thing. Thank god for this warranty, their quality control is ****e.
anyone noticed that occasionally it stops charging?
front firing speakers said:
anyone noticed that occasionally it stops charging?
Click to expand...
Click to collapse
Last night, mine started doing this. It goes on and off about every two seconds. What's weird is it only does this with the quick charger. it slow charges when connected to a PC usb just fine. Its not the OEM charger either since my wife's quick charges just fine with the exact same charger.
Guess I'm going to have to call ZTE....
Mine suddenly stopped quick charging - I have 3 different chargers that work fine with other phones except for this one. And chances of all 3 of them going bad at the same time are slim to none. Tested different cables as well, but again same result. It charges with normal speed even when connected to QC3.0. Tried wiping cache. I think it's no different if I turn the phone off. Think it might be time to move on. Had it since December 2016, so I guess it's nearly 2 years old now. Still shame.
bustr85 said:
Mine suddenly stopped quick charging - I have 3 different chargers that work fine with other phones except for this one. And chances of all 3 of them going bad at the same time are slim to none. Tested different cables as well, but again same result. It charges with normal speed even when connected to QC3.0. Tried wiping cache. I think it's no different if I turn the phone off. Think it might be time to move on. Had it since December 2016, so I guess it's nearly 2 years old now. Still shame.
Click to expand...
Click to collapse
Quick update. Swapping batteries (OEM) hasn't helped. I wonder if this is software or hardware related
Let me add to this thread. I'm also not getting quick charge anymore for maybe a month already. Tried different cables, booting to safe mode, etc. There are few instances where i see quick charging but very rarely. I was thinking it's my usb port but I haven't opened my phone yet to verify.

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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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!
Click to expand...
Click to collapse
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???

Observations on charger port burn out problems

I have read from various sources about the Leeco 727 dying a premature death due to burn out of the charger port. Some theories attribute it to bad Leeco supplied charging adapter or cable or faulty motherboard.
I tried a bunch of different wall adapters and cables to see if I could make some sense of it. What I noticed is that only with the Leeco supplied unit and an Anker dual port unit do I get any semblance of fast charging. There is no indicator on screen. I can only go by time observation.
Charging with other fast charge adapters seem to charge at a slower pace at 5 volt. From what I can see using a USB port tester is that when something charges at fast charge, it charges at 9 volt. I used a Samsung adapter and one from an orbic wonder which are definitely fast charge capable. They charge my old Motorola G4 at "turbo power" and a Note 4 at "fast charge".
I bought a unit from Allmaybe that has visual lcd of power consumption and it clocked down to a lower voltage after tripping the overpower indicator.
Maybe we need to throw away the Leeco wall adapter. It's possible that either it or the phone is drawing too much electricity for the port to handle.
tekweezle said:
I have read from various sources about the Leeco 727 dying a premature death due to burn out of the charger port. Some theories attribute it to bad Leeco supplied charging adapter or cable or faulty motherboard.
I tried a bunch of different wall adapters and cables to see if I could make some sense of it. What I noticed is that only with the Leeco supplied unit and an Anker dual port unit do I get any semblance of fast charging. There is no indicator on screen. I can only go by time observation.
Charging with other fast charge adapters seem to charge at a slower pace at 5 volt. From what I can see using a USB port tester is that when something charges at fast charge, it charges at 9 volt. I used a Samsung adapter and one from an orbic wonder which are definitely fast charge capable. They charge my old Motorola G4 at "turbo power" and a Note 4 at "fast charge".
I bought a unit from Allmaybe that has visual lcd of power consumption and it clocked down to a lower voltage after tripping the overpower indicator.
Maybe we need to throw away the Leeco wall adapter. It's possible that either it or the phone is drawing too much electricity for the port to handle.
Click to expand...
Click to collapse
Their threads on this.
Sent from my LEX727 using xda premium
A device like yhis Xdragon USB voltmeter might be helpful in debugging issues with charging.
Right now I am connected to a Samsung adaptive fast charger that can pull 9 volts but currently just pulling in 4.78 volts and about 700 mAh. At that rate will take about 5 to 6 hours to fully charge the 4200 mAh battery in the Leeco
tekweezle said:
I have read from various sources about the Leeco 727 dying a premature death due to burn out of the charger port. Some theories attribute it to bad Leeco supplied charging adapter or cable or faulty motherboard.
I tried a bunch of different wall adapters and cables to see if I could make some sense of it. What I noticed is that only with the Leeco supplied unit and an Anker dual port unit do I get any semblance of fast charging. There is no indicator on screen. I can only go by time observation.
Charging with other fast charge adapters seem to charge at a slower pace at 5 volt. From what I can see using a USB port tester is that when something charges at fast charge, it charges at 9 volt. I used a Samsung adapter and one from an orbic wonder which are definitely fast charge capable. They charge my old Motorola G4 at "turbo power" and a Note 4 at "fast charge".
I bought a unit from Allmaybe that has visual lcd of power consumption and it clocked down to a lower voltage after tripping the overpower indicator.
Maybe we need to throw away the Leeco wall adapter. It's possible that either it or the phone is drawing too much electricity for the port to handle.
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The charger is fine, it was built according to qualcomm specs: https://www.qualcomm.com/media/documents/files/quick-charge-device-list.pdf
The Issue is that alot of phones were sent out with bad cables.
I don't think that it's just the cable.
I have been seeing hard shut downs while charging at night. It's not consistent so I am just going slow I suspect that the phone is shutting off to prevent overcharging the battery.
I have 2 x727 with asop extended 8.1 and blackscreen kernel 4.9 installed
I replaced the original LeEco USB C cable with a genuine Samsung USB C cable per the recommendation of other threads. "no change still shut down while charging overnight"
I suspect that it is a kernel battery issue so I backed up in twrp and I installed the regular version 4.9 of the blackscreen kernel. "no change the phone is still shutdown occasionally while charging overnight on a original leeco charger with a Samsung USB C cable"
So now I am trying both a Samsung charger and Samsung cable. I should revert back to the twrp kernel backup but blackscreen kernel is just too awesome!
The Samsung charger only outputs at 5.3V @ 2.0A
The LeEco charger outputs at 3.6v to 8v @ 3.0A or 12v @ 2.0A
I'm pretty sure that the problem is a software issue with the quick charge 3.0 voltage controls in the rom itself but I haven't gotten a log of the shutdown yet to confirm that because I haven't rooted the phone. The phone was getting uncomfortably warm when charging.
I'm betting that with the Samsung Oem quick charge 2.0 charger the phone will work properly without shutting down overnight.
I'll update this post with my results.
dlradlt said:
I have been seeing hard shut downs while charging at night. It's not consistent so I am just going slow I suspect that the phone is shutting off to prevent overcharging the battery.
I have 2 x727 with asop extended 8.1 and blackscreen kernel 4.9 installed
I replaced the original LeEco USB C cable with a genuine Samsung USB C cable per the recommendation of other threads. "no change still shut down while charging overnight"
I suspect that it is a kernel battery issue so I backed up in twrp and I installed the regular version 4.9 of the blackscreen kernel. "no change the phone is still shutdown occasionally while charging overnight on a original leeco charger with a Samsung USB C cable"
So now I am trying both a Samsung charger and Samsung cable. I should revert back to the twrp kernel backup but blackscreen kernel is just too awesome!
The Samsung charger only outputs at 5.3V @ 2.0A
The LeEco charger outputs at 3.6v to 8v @ 3.0A or 12v @ 2.0A
I'm pretty sure that the problem is a software issue with the quick charge 3.0 voltage controls in the rom itself but I haven't gotten a log of the shutdown yet to confirm that because I haven't rooted the phone. The phone was getting uncomfortably warm when charging.
I'm betting that with the Samsung Oem quick charge 2.0 charger the phone will work properly without shutting down overnight.
I'll update this post with my results.
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Have you tried simply reflashing the correct firmware?
I too have a X727 and had similar issues in the past while using a firmware designed for the X720, and alot of of Rom's come with the X720 firmware.
Try flashing the kernel from my Google Drive link below and see if that helps.
https://drive.google.com/open?id=1qAJrM8bIfI190W9w2gKR97xVhA-2lrZt
Meh 2 phones same software with different results.
I still don't really know why it was shutting off while charging overnight.
But the problem hasn't repeated itself since I stopped using one of the LeEco chargers. So at the moment I am blaming it on a bad charger base or wonky phone charging circuit, not the cable.
I was thinking my problem was software but I had already changed my roms Kernel to the appropriate blackscreen kernel from the roms stock kernel and the problem persisted on her phone until I stopped using the one included LeEco charger on my wife's phone, it's charging fine on the Samsung 2.0 quick charger, and mines charging without issues on the second LeEco 3.0 quick charger.
Unfortunately I can't just wipe her phone without causing her problems because she is always on her phone.
Is the problem hardware related in her phone is my current question? Or am I tracking a bug in the software.
If the problem is that charger base it should have zero effect if I put her phone on the 3.0 charger that I am using. If it is her phones charging hardware that test could permanently brick the phone Fry the charge port or battery ect...
So I am going to order another x727 if I can find another new one on ebay apparently most of the new US inventory is gone and the price is being gouged on the last of the new ones. :crying:
That way I will have a backup so I can do that test and have a phone to use for development. That's why I bought this phone in the first place.
I'm pretty sure that the one charger base is the whole problem but I can't afford to test that theory yet.
dlradlt said:
I still don't really know why it was shutting off while charging overnight.
But the problem hasn't repeated itself since I stopped using one of the LeEco chargers. So at the moment I am blaming it on a bad charger base or wonky phone charging circuit, not the cable.
I was thinking my problem was software but I had already changed my roms Kernel to the appropriate blackscreen kernel from the roms stock kernel and the problem persisted on her phone until I stopped using the one included LeEco charger on my wife's phone, it's charging fine on the Samsung 2.0 quick charger, and mines charging without issues on the second LeEco 3.0 quick charger.
Unfortunately I can't just wipe her phone without causing her problems because she is always on her phone.
Is the problem hardware related in her phone is my current question? Or am I tracking a bug in the software.
If the problem is that charger base it should have zero effect if I put her phone on the 3.0 charger that I am using. If it is her phones charging hardware that test could permanently brick the phone Fry the charge port or battery ect...
So I am going to order another x727 if I can find another new one on ebay apparently most of the new US inventory is gone and the price is being gouged on the last of the new ones. :crying:
That way I will have a backup so I can do that test and have a phone to use for development. That's why I bought this phone in the first place.
I'm pretty sure that the one charger base is the whole problem but I can't afford to test that theory yet.
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Click to collapse
You can buy usb voltage testers on Amazon.
If you happen to have a bad charging block just toss it, and buy a universally compatible Qualcomm Quick Charger. Such as this one: https://www.amazon.com/Charge-Anker-Charger-Compatible-PowerPort/dp/B016LO811S
Blitzwolf quickcharger and C cables. Bought 3 of each. All my charging issues disappeared when I bought them. Leeco supplied cable/charger are crap, why risk it?
FYI, I have experienced the condition where my charging stops randomly when using 2 different decent Samsung Travel model fast chargers. Stopped around 49% to 85%
Neither pulled in fast charging voltage-drawing a little under 5 volts and maybe 1100mah, as compared to 9 volts when connected to the Leeco charger.
Good point. Charger blocks are cheap phones aren't.
As addendum to this issue, after a year and half my charger port finally burned out. Probably abused the phone a bit and got some moisture in the port, maybe it was just a matter of time.
I was able to resurrect the phone though. The actual replacement board is available on eBay for $5-10 with tools. Hardest part was using a heat gun to remove the screen. There are guide on how to open up this unit.
One thing I will tell you I am that you don't need to remove the battery to get to the USB board.
Just another note, either hitting my phone with the heat gun or mucking around with the battery unnecessarily caused the battery to start to malfunction. Battery would discharge quickly and phone would shut off randomly. I replaced the battery with some cheap replacement from China, cost about $16.
Also replaced the screen because I tore the ribbon cable by accident. The screen cost about $13. Definitely cheaper than an iPhone replacement!

Why on earth was fast charging disabled for this nexus?

*Deleted*
They didn't disable anything - it doesn't have the Qualicom Quick Charge variant, but it does have it's own variant of a rapid charge.
Using two wall chargers I have here and a Benson certified USB-C Cable, one of the wall chargers support QC2.0 and the other QC3.0. Both charged "normally" reporting on the screen as "Charging".
Using the stock USB-C wall charger that came with my 6P, using EX Kernel and the stock kernel from January 8.1 stock ROM, both reported "Charging Rapidly". I switched kernels using EXKM and a backup of the stock Kernel to test this.
Also, I bought a Tronsmart USB-C Car Charger, and it too reports "Charging Rapidly".
ZuneYT said:
Hey everyone,
So I got my nexus 3 Months ago, I just found out NOW that it is not fast charging at all. I bought a new ANKER charger and wire with it and its just charging slowly which got me really annoyed as I wasted money on it because I thought it had nothing to do with the phone at all. I did some digging around and the maker of franco kernel found out that bloody google disabled the bloody fast charging on the 6P?! What kind of solution is that? I mean they could of at least gave us options on whether to disable or enable it in the phone. Is there ANY way to get fast charging enabled on this phone?
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Click to collapse
Nexus 6p just charges at a higher amperage then most average phones. As long as you use a charger with 5V/3A you should get charging rapidly. Just remember as the battery percentage increases the amps get lower. Use an app like ampere to make sure your getting close to 3000mA. I think the highest charge I seen on the stock plug was like 2800mA.
Well I bought an ANKER Charger and usb cable with it which definitely says it is fast charging compatible. When it comes to charging my phone I got a small text on my lock screen showing me how much charge there is going to the phone while charging. The average charging mAh is 1,400 and the voltage is 4.3V. I am pretty sure that it has reached a higher charge rate....I'll have to keep an eye on it. Do you think thats an acceptable charging rate?
It's not just about amperage, because some of their chargers are a whopping 8A - https://www.anker.com/ca/products/108/203/Wall-Chargers
Anker doesn't support the variant of rapid charging that the 6P accepts, therefore it only will negotiate down to a normal "charging" rate, which IIRC is exactly what you're getting.
ZuneYT said:
Well I bought an ANKER Charger and usb cable with it which definitely says it is fast charging compatible. When it comes to charging my phone I got a small text on my lock screen showing me how much charge there is going to the phone while charging. The average charging mAh is 1,400 and the voltage is 4.3V. I am pretty sure that it has reached a higher charge rate....I'll have to keep an eye on it. Do you think thats an acceptable charging rate?
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Click to collapse
That's kind of low this one from the comments works. Sorry it's Canadian amazon but maybe can find in your are.
Exodusche said:
That's kind of low this one from the comments works. Sorry it's Canadian amazon but maybe can find in your are.
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Click to collapse
Well good news I found the plug from my past orders I just forgotten to look on my account haha.
This is it here https://www.amazon.co.uk/gp/product/B017VXARME/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
ZuneYT said:
Well good news I found the plug from my past orders I just forgotten to look on my account haha.
This is it here https://www.amazon.co.uk/gp/product/B017VXARME/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
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Click to collapse
Noice yeah Amazon is good that way!! ?
I'm having this problem too. I used to be able to rapid charge using anker usb c to usb c but now it just seems to charge normally not rapid charge.
Anyone know of a fix, let me know.
Thanks

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