Develop Bugs

Possible Trick to get Quick Charge on Z2 international varient

I have been searching for Z2 quick charging, and find out that z2 have quick charging enabled only on Japanese model ( SO-03F) (and it have a 32 gb internal memory). And qualicom itself says that z2 support quick charge 2.0. ( well dont get confused over the terms quick charge and fast charge ( fast charging = 5v @ amps over 1 amp, possibly [email protected] 1.5 - 2 Amp and Quick charge 2.0 = 9/12 v at 1.5- 2amp, higher voltages).
I have tried with note 4 quick charger on z2 6503, but it charges in normal mode. So sony have possibly dissabled quick charge 2 on other varients of Z2 (why sony... Why!!!). But since hardwares of Japanese model and other region's models are possibly same ( except radio and memory???, or are they locked, since radio unlocking can be done in all sony phones), i think that the same quick charge chip is used in international models and possibly locked down.with software, may be we can enable it via some tricks???
My idea is:-
1) cross flash SO-03F FIRMWARE ON INTERNATIONAL MODEL
2) dissassemble kernal and other hardware drivers along with scripts ( cross matching them) and find out where the code is hidden/dissabled and copy that to use with international models.
So any possible idea, thoughts,disaster report is welcome.
I have 90% confidence in this, i need help and reports from kernel developers, can you guys just cross check the kernel of SO-03F with international varient like 6503?
Hope we can find it out since we have made great things like 4k and slow-motion port for z1, which is a different phone, but in this case 99% of hardware is same.
So pls help to dig this out..

I'm quite sure the QuickCharge is enabled somewhere in the kernel.

May be... But we dont know yet...

showlyshah said:
May be... But we dont know yet...
Click to expand...
Click to collapse
Basically, if you turn off a QC2.0 device and plug in the charger it still is going to charge at full speed. This means it has to be the kernel. Unless it uses some external drivers from the system, but I don't think that's the case here.

So u saying that quick charge still works when phone is off?

showlyshah said:
So u saying that quick charge still works when phone is off?
Click to expand...
Click to collapse
Well, I don't have a Z3 or a Z2 variant to test it, but I'm quite sure it does.

Any previous experience with any quick charge devices? Welll so we need the help of a kernel developer.. Seriously i have very lil knowledge about kernel development.. But i will look for sources to compare..

showlyshah said:
Any previous experience with any quick charge devices? Welll so we need the help of a kernel developer.. Seriously i have very lil knowledge about kernel development.. But i will look for sources to compare..
Click to expand...
Click to collapse
Well, I'll try to find out how it works after my exams

thank you mate. well i would love to get attention of all developers to this thread.

@AndroPlus would be most qualified guy for the job

Thank you for this thread, i would like to add something
The official indian website of Sony lists a fast charging mobile charger compatible for the Z2 http://www.sonymobile.com/in/products/accessories/quick-charger-ep881/
& i bought it, but it doesn't do anything as it claims.
Now i may be a little skeptical but i think that as i bought my device from China through ebay, maybe thats why im missing this feature.
P.S. The power output of the charger is 12W which makes it total legit as a quickcharger

Check the volatge and amp description of that charger, if it is 5 v @ some "x" amp, then its just normal charger with high capacy. Not quick charge 2.0, but if its 9 or 12 v its a quick charger.

EP881 is not UCH10 is. Link: http://www.sonymobile.com/global-en/products/accessories/quick-charger-uch10/
List of Qualcomm Certified Quick Charge 2.0 Accessories: https://www.qualcomm.com/documents/quick-charge-device-list

showlyshah said:
So pls help to dig this out..
Click to expand...
Click to collapse
QuickCharge is enabled by default, so no tricks with kernel needed.
But, as I found out reading on xda, you also need compatible CABLE to be able to use quick charging. Apparently the standard data cables cannot push enough current through them. The compatible cable (which ships with some of the newer devices) is labeled as EC 802. And as far as I understood any cable which has those cylinders behind both ports on the cable, can do the job.

Cirra92 said:
And as far as I understood any cable which has those cylinders behind both ports on the cable, can do the job.
Click to expand...
Click to collapse
Uhm, what kind of cylinders?
If you mean those 1.5cm in diameter plastic coated things on both ends of the cable after the connector, thats simply Lead to reduce electromagnetic interference or such a thing. I have a cable with those USB 1.1 that's about 8-12 years old.

Guys pls dont try to suggest things if u dont know what are you talking about.. I did say its quick charge 2. Not fast charging or rapid charging or lighting charing or what ever... Quick charging is a new method adopeted by qualicom.. Its not about amp ratings.. Its a method through which battery is charged with more watts/hr. And its the voltage increase that does the trick, not current. I have said the difference in op post...!!!! I wish some development should be happen, not just talking..

Well well well..... Is it physically even possible for the non Japanese version? Maybe they've put another VRM on the PCB on the SO-03 revision which can handle 9v, and the international version does have an older chip?

Haldi4803 said:
Uhm, what kind of cylinders?
If you mean those 1.5cm in diameter plastic coated things on both ends of the cable after the connector, thats simply Lead to reduce electromagnetic interference or such a thing. I have a cable with those USB 1.1 that's about 8-12 years old.
Click to expand...
Click to collapse
I forgot to say any newer cable, surely not those 10y old. Try to do a research on quick charging, I really don't know much about it, but I have found some posts where people tested different cables with aftermarket quick chargers (those approved by Qualcomm) and confirmed that not all of them will work, specifically EC802 does, bot not 801 and 803 (which I have).
---------- Post added at 10:22 PM ---------- Previous post was at 10:12 PM ----------
showlyshah said:
I did say its quick charge 2. Not fast charging or rapid charging or lighting charing or what ever...
Click to expand...
Click to collapse
I know the basic difference, I have just shared that I have found info about cable compatibility, not just the charger itself. No need to be upset about it, I was just trying to help, dear God.

If any one of the members want to know the basics of quick charging and similar technology for our devices, read this article by androidpolice
http://www.androidpolice.com/2015/0...-need-to-know-about-charging-your-smartphone/

Well one thing that is missed in the artcle... I will explain.
Normaly most rapid chargers/fast chargers ( not quick charger 2.0) like my sony oem Ep 880 which came bundled with z2( rated [email protected] = 7.5 w) and samsung model Eta-u90IWE which i use on my z2 normally ( rated [email protected] = 10 w) can charge z2 fastly ( using a belkin 2.5 mts usb cable) but neither is quick charger 2.0.
There are other oem chargers which are rated at 3amps or even 4.5 amps like asus transformer pad charger ( ie 5v at 3amp=15w or 5v at 4.5amp= 22.5w) but then too those are not quick chargers 2.0, since that article says that anything above 15(or18) watts is a quick charger 2.0, there will be a chance of miss conception.
Let me clear it, quick charging 2.0 chargers charge phone with higher voltage and below or equall to 2amps, thats how the wattage rating increses ( 9v @2 amps= 18 w 12v @2 amp = 24w) so be sure to check the volatge before choosing a quick charger. Any currents above 1.5 will do the trick if u have 9/12 v chager.
Sent from my D6503 using XDA Forums PRO

Who has tried wireless charging, and is it still working?

There are numerous threads on people's experience with wireless charging, mostly involving the stickers to use, meltdowns with heat, etc. I would like to compile people's experiences.
If you do have experience, please comment on:
1. Did you ever get it to work to your satisfaction? If not, what was not satisfactory about it?
2. How long did it last? Or how long have you had it working?
3. What qi charger do/did you use?
4. If it broke down, what happened and did you ever get it working again?
5. What model of G4 and/or carrier do you have?
Also, there's a quick poll associated in this thread.

Working sense late June. Using this one but I got it before the 2.0 upgrade. NeWisdom https://www.amazon.com/dp/B00YU08SOG/ref=cm_sw_r_other_awd_fxViwbN05MBDA

scottjal said:
Working sense late June. Using this one but I got it before the 2.0 upgrade. NeWisdom https://www.amazon.com/dp/B00YU08SOG/ref=cm_sw_r_other_awd_fxViwbN05MBDA
Click to expand...
Click to collapse
What qi charger do you use?
(added to the original post just now)

waylo said:
What qi charger do you use?
(added to the original post just now)
Click to expand...
Click to collapse
This one, it was basically the cheapest one I could find June 2014. Once the phone is charged you can see the light cycle on and off just maintaining 100%. Works fine for a bunch of devices and I don't notice if it's slow as it has 8 hours to charge when I sleep.
CHOE UPGRADED Qi Wireless Charger Charging Pad https://www.amazon.com/dp/B00DRBFMZM/ref=cm_sw_r_other_awd_WNViwbW7EJTDK

I purchased this plastic replacement back that came with a qi sticker. I used it mainly with this CHOE 3 coil charger, but also tried it on this Yootech one, and this one as well. On all three chargers, the phone got super hot while charging. So much so that at one point my phone even froze up and I had to pull the battery. It may have been the qi sticker that came with the back I bought, but I stopped wireless charging after about a week, because I just didn't like how hot it got.
I'm thinking of picking up another qi sticker, but just can't decide which one is the best.

I'm using the official LG qi charger and the quickcircle cover with qi built in. All working but i find plugging in faster so basically just end up using that instead..

paqmanbiker said:
I purchased this plastic replacement back that came with a qi sticker. I used it mainly with this CHOE 3 coil charger, but also tried it on this Yootech one, and this one as well. On all three chargers, the phone got super hot while charging. So much so that at one point my phone even froze up and I had to pull the battery. It may have been the qi sticker that came with the back I bought, but I stopped wireless charging after about a week, because I just didn't like how hot it got.
I'm thinking of picking up another qi sticker, but just can't decide which one is the best.
Click to expand...
Click to collapse
I've found that exact placement on the charger can affect the charging temperature dramatically. I think if the sticker is a little ways off from the center of the qi charger (wherever that is, not sure how that is determined on the 3 coil), it heats up a lot more.

waylo said:
I've found that exact placement on the charger can affect the charging temperature dramatically. I think if the sticker is a little ways off from the center of the qi charger (wherever that is, not sure how that is determined on the 3 coil), it heats up a lot more.
Click to expand...
Click to collapse
Yeah I tried my best to make sure it was right in the center, but it seems no matter where I placed it it would get hot. Plus what's the benefit of having a 3 coil charger if I have to place it in exactly the right spot? I think there is definitely something wrong with the qi sticker I'm using. If not, many others would be having similar issues. I'm using fairly widely used chargers.
Sent from my LG-H811 using Tapatalk

I never felt comfortable using the Qi charging after hearing the noise my phone made when I set it on the charger. I have multiple brands of chargers and all produce the same noise from the phone's speakers (youtube link below). I've tried with cases and without cases on all my chargers.
Here are my qi chargers:
1. Itian Qi Standard Wireless Charger
2. Axiong Qi Wireless 3-Coils Stand Charging Pad Stand Dock Wireless Charger for Qi Phones
3. Tmvel T2 Wireless Charger Charging Mount Cradle Stand for all Qi Phones, with Wide Charging Area for LG G3, Nexus 5, Nexus 4,Nokia Lumia 920, MOTO Dro
4. Tmvel Qi Wireless Car Charger Dock for Qi-Enabled Devices
5. Nillkin Energy Stone For Nokia Lumia 920 1520 Lg Google Nexus 4 5 LG G2 HTC 8x DNA Simple Fashion Wireless Qi Power Charger Charging Pad + Leevin® NF
6. PowerBot® PB1020 Qi Enabled Wireless Charging Pad Station for All Qi Standard Compatible Devices Including Samsung, iPhone, Nokia, Google, Nexus, LG,
7. Ruix Wireless Charger -Qi Enabled Charger - White
https://www.youtube.com/watch?v=HV4rHIBdM5M

So an impressive 50% of folks on the poll at this time have had it crap out.
Wonder if the V10 will have this issue too? I'd consider switching to that, but the G4 is big enough already for me.

1. Works as expected
2. Have it for a week now
3. PowerBot
4. n/a
I'm using the official LG G4 CFR-100 cover btw...

After reading about wireless charging, maybe it's the reason why the feature was removed from phones released in my country. We got a dual sim variant where wireless charging was removed totally.

prinzhernan said:
After reading about wireless charging, maybe it's the reason why the feature was removed from phones released in my country. We got a dual sim variant where wireless charging was removed totally.
Click to expand...
Click to collapse
Wireless charging was removed from dual sims because the circuitry for wireless charging is replaced by that of the second sim.

waylo said:
There are numerous threads on people's experience with wireless charging, mostly involving the stickers to use, meltdowns with heat, etc. I would like to compile people's experiences.
If you do have experience, please comment on:
1. Did you ever get it to work to your satisfaction? If not, what was not satisfactory about it?
2. How long did it last? Or how long have you had it working?
3. What qi charger do/did you use?
4. If it broke down, what happened and did you ever get it working again?
Also, there's a quick poll associated in this thread.
Click to expand...
Click to collapse
1. Yes, it worked perfectly.
2. I only use the wireless charger at work and I started noticing issues after the 12th work day. Today is the 13th day and it is no longer working at all. When I power off the device and stick it on the charger, the charging light briefly indicates it's charging and powers the device on and then goes back to the idle state.
3. Using this back: http://www.amazon.com/gp/product/B00ZEY13SU?psc=1&redirect=true&ref_=oh_aui_search_detailpage and this charger: http://www.amazon.com/gp/product/B00LFVPRMO?psc=1&redirect=true&ref_=oh_aui_search_detailpage
4. Came to XDA see if it's common and it looks like it is I'll try to see what happens after contacting LG support. I doubt there's much T-Mobile can do if I don't have any type of insurance or anything with them.

mypantsaretorn said:
1. Yes, it worked perfectly.
2. I only use the wireless charger at work and I started noticing issues after the 12th work day. Today is the 13th day and it is no longer working at all. When I power off the device and stick it on the charger, the charging light briefly indicates it's charging and powers the device on and then goes back to the idle state.
3. Using this back: http://www.amazon.com/gp/product/B00ZEY13SU?psc=1&redirect=true&ref_=oh_aui_search_detailpage and this charger: http://www.amazon.com/gp/product/B00LFVPRMO?psc=1&redirect=true&ref_=oh_aui_search_detailpage
4. Came to XDA see if it's common and it looks like it is I'll try to see what happens after contacting LG support. I doubt there's much T-Mobile can do if I don't have any type of insurance or anything with them.
Click to expand...
Click to collapse
The T-Mobile store can put in for a warranty exchange, if you initially bought it with them. But then you get a refurb. It's $20. Alternatively, you could send it in for a factory warranty, but it'll be out for several weeks. And then after you get it back, the wireless charging will break down after a week or two. Ridiculous, right?
I think it's endemic with our H811 model. I wish this could be as big as Antennaegate, forcing LG to admit their poor design+engineering, but there aren't enough users to raise a stir.

waylo said:
The T-Mobile store can put in for a warranty exchange, if you initially bought it with them. But then you get a refurb. It's $20. Alternatively, you could send it in for a factory warranty, but it'll be out for several weeks. And then after you get it back, the wireless charging will break down after a week or two. Ridiculous, right?
I think it's endemic with our H811 model. I wish this could be as big as Antennaegate, forcing LG to admit their poor design+engineering, but there aren't enough users to raise a stir.
Click to expand...
Click to collapse
I just had an online chat session with LG Support and since they only officially brand their Qi case for Verizon phones they are telling me that the T-Mobile model is not compatible with wireless charging and there's nothing they can do. I got this phone off CL so going to T-Mobile is going to be difficult. I purchased the LG G4 back on release day day but returned it so I was going to use that receipt with LG Support but it looks like that's a dead end.
Another question you should ask in this thread is which model people are using since this is a general G4 forum and not carrier specific. It does look like this happens with Verizon phones too though: http://forum.xda-developers.com/verizon-g4/help/wireless-charging-stopped-t3226231
Thankfully the battery life is good enough on this phone where I can probably live without the wireless charging at work. To be honest It was more of a must have when I had the S6 since there was no way I could make it through the workday without leaving it on the charger.

Wow, really? The function that works (at least initially) because all the hardware is there, on T-Mob, is "not supported?" That sounds like LG support has their heads up their butts, just like the QA department on the wifi charging.
I'll add the question of what version G4 do you have on the questionnaire. Can't edit the poll anymore though I wish I could.

1. Locked up during the night, multiple times a week.
2. Randomly started working perfectly for 3 months. Replaced phone. Worked for about 1.5 months. Now stops charging and locks up during the night again.
3. Nokia puck + Samsung + several chinese ebay units
4. Absolutely no idea why it magically fixed itself and now magically broken.
5. Verizon G4

There are numerous threads on people's experience with wireless charging, mostly involving the stickers to use, meltdowns with heat, etc. I would like to compile people's experiences.
If you do have experience, please comment on:
1. Did you ever get it to work to your satisfaction? If not, what was not satisfactory about it?
Yes, but not for more than a couple weeks at a time.
2. How long did it last? Or how long have you had it working?
About 2 weeks, sent in for RMA, came back not fixed, sent back, worked for a little over a week, stopped today.
3. What qi charger do/did you use?
LG Quick Circle case purchased from Verizon, 2 tylt vus, one samsung puck.
4. If it broke down, what happened and did you ever get it working again?
No idea what caused it to stop working -- today it stopped somewhere between work and home.
First time, mailing it in twice helped.
5. What model of G4 and/or carrier do you have?
Verizon
Also, there's a quick poll associated in this thread.

Using a Yootech sticker with a Yootech puck. Both work well. I originally had a sticker from the Fone company...the colorful one in blue and green, iirc. The wireless charging worked but the NFC was unusable with it. (not that I myself use nfc

LG G6 Qi enabling case for EU Version

Hey Guys,
I'd really like to buy me the LG G6, but buying a feature cutted Phone kinda su**...
I probably wont miss the quad dac, but I'm really into Qi charging.
I read about these pads, but I don't like blocking my usb Port all the time, so I looked for a case, which might get me this, but haven't found one.
Is there anything like this to buy?
Thanks and greetings

Since the version without wireless charging has no option to get current into the device beside the USB port,
the port will always be blocked by any solution for wireless charging.

Just buy the G6 with this option, its better (design and performances) and cheaper (price is better)
Sent from my LG G6 using XDA Labs

Thanks for your replies, I know it's gonna block the usb Port, but I hope there would be a better solution than these pads...
I found this case for iPhone by Nillkin with which I would be absolutly fine, but there's probably nothing compareable for the LG:
amazon.de/dp/B06X194B87/ref=cm_sw_r_cp_apa_2YZrAbY15P00F
I would really like to buy the Plus US Version, especially the Amazon Prime Version for 499, but as I live in Germany, things are a little bit complicated (and expansive)
I probably just gonna wait for the G7 and hope, they wont tread customers that different again...

I bought LG G6 H870 too.
I would like to use the QI but i don't know. There is an accessories which can enable the charging ?
Thanks.

B0lle said:
Hey Guys,
I'd really like to buy me the LG G6, but buying a feature cutted Phone kinda su**...
I probably wont miss the quad dac, but I'm really into Qi charging.
I read about these pads, but I don't like blocking my usb Port all the time, so I looked for a case, which might get me this, but haven't found one.
Is there anything like this to buy?
Thanks and greetings
Click to expand...
Click to collapse
here an accessory but i don't know if it's reliable!
USB Type C of charging receiver
let me know if someone know something

I had one wireless patch connected to the USB-C but I returned it to Amazon for the following reasons:
- Even if it is defined as "slim", it is not really slim and distorts the phone case and back of the phone becomes curved...
- The charging power is very sensitive to how to place the phone on the wireless charger. The maximum that I got was 15% per hours. My S7 is charging 30% per hours in the same config in more or less in all positions
- The USB-C is busy and you can't charge it easily in your car or at office without removing the patch.
--> It is waste of money.
The best should be to integrate the US G6 plate in the phone but several people already reported that it doesn't work on the DS version (missing connector pins on the mainboard).

Does the S9 support Qualcomm Quick Charge 4.0 or 4.0+? Or even QC 3.0?

I haven't seen this mentioned at all or not sure if the s8 supported qc 3.0 or Power delivery but does the S9 support QC 4.0 or 4.0+ or even qc 3.0 or Power Delivery like the Pixels?

According to GSM Arena, only Quick Charge 2.0 is supported...
-Fast battery charging (Quick Charge 2.0)
Click to expand...
Click to collapse
https://www.gsmarena.com/samsung_galaxy_s9-8966.php

QC 2.0 in a 2018 flagship phone is blasphemy.
Apparently USB-PD is also supported but is throttled.

Seems like samsung is treading lightly when it comes to battery, who could blame them.

The Note 8 supports Power Delivery, so I assume the S9 will as well.
https://gtrusted.com/usb-power-deli...ote-8-and-google-universal-type-c-charger-60w

While I see that it only is rated for 2.0, I've gotten used to 3.0 with my LG phone. The G6 charges fairly quickly. I would miss the fast charging speeds if it isn't as fast as the LG.

I'm looking forward to any fast charging aspect since my current phone doesn't have any of those features. Since Apple hasn't "invented" it yet...

Deathman20 said:
I'm looking forward to any fast charging aspect since my current phone doesn't have any of those features. Since Apple hasn't "invented" it yet...
Click to expand...
Click to collapse
The iPhone 8, 8 Plus, and X all support USB-PD.

OGhoul said:
The iPhone 8, 8 Plus, and X all support USB-PD.
Click to expand...
Click to collapse
Oh yes... my bad forgot they do have that function, just with the included accessories it still doesn't "fast charge" because apple wants you to purchase the $30-50 cable or wall charger to make it happen.

I noticed that charging takes around 30mins longer on my s9 compared to my s7. I'm not sure if that's because it might have a bigger battery or they've purposely slowed down charging to prevent an explosion lol. The phone doesn't seem to heat up while charging like it did with my s7.

GaMeFaNaTi3 said:
I noticed that charging takes around 30mins longer on my s9 compared to my s7. I'm not sure if that's because it might have a bigger battery or they've purposely slowed down charging to prevent an explosion lol. The phone doesn't seem to heat up while charging like it did with my s7.
Click to expand...
Click to collapse
It does have the same battery size. Nice that it doesn't heat up the phone.
By chance where you using the phone while it was charging? It will kick it from quick charge to standard charge if the display is on.

Deathman20 said:
Oh yes... my bad forgot they do have that function, just with the included accessories it still doesn't "fast charge" because apple wants you to purchase the $30-50 cable or wall charger to make it happen.
Click to expand...
Click to collapse
True...ish.
I use Anker's 30w charger (and I do use Apple's USB-C to Lightning cable). It wasn't that big of a deal for me because I needed a new work/travel charger setup anyway.

Deathman20 said:
It does have the same battery size. Nice that it doesn't heat up the phone.
By chance where you using the phone while it was charging? It will kick it from quick charge to standard charge if the display is on.
Click to expand...
Click to collapse
Nope I leave it since I'm aware of that limitation. I prefer the phone to heat up tbh and charge 30mins quicker!

Deathman20 said:
I... It will kick it from quick charge to standard charge if the display is on.
Click to expand...
Click to collapse
No, it is not. Not even my S7 Edge did that. Fast Charge stays regardles if you have the display on or of, if you're using the phone or not. I heard (but not confirmed tho) that this happens during WIRELESS CHARGING. This I don't know and cannot say if it is true or not. But the fast charge with the original Samsung wall charger will not switch from "fast" to "normal" unless it's an issue

When fast charging my charge voltage wont go above 7.5v when the QC2 spec alows 9v and 12v.

There was annoying sound coming out from the usb port of the S9+ when i plugged the device using Anker QC3 charger.
Sent from my SM-G965F using Tapatalk

thegreatone3 said:
The Note 8 supports Power Delivery, so I assume the S9 will as well.
https://gtrusted.com/usb-power-deli...ote-8-and-google-universal-type-c-charger-60w
Click to expand...
Click to collapse
Curious to hear other experiences, but my T-Mobile S9+ is very erratic with PD support. Using Anker's latest five port charger with PD, my S9+ will start indicating "fast charging", but will always drop back to "cable charging" at a very slow speed. Hmm.
Sent from my SM-G965U using Tapatalk

Rapier said:
No, it is not. Not even my S7 Edge did that. Fast Charge stays regardles if you have the display on or of, if you're using the phone or not. I heard (but not confirmed tho) that this happens during WIRELESS CHARGING. This I don't know and cannot say if it is true or not. But the fast charge with the original Samsung wall charger will not switch from "fast" to "normal" unless it's an issue
Click to expand...
Click to collapse
On my S7, and I'm pretty sure the Edge uses the same charging technology, it'll switch from [email protected],6A=~15W to [email protected]=~5W after I turn on the display, just because it says fast charging that doesn't mean it's actually doing that. Have you tried it yourself using a USB power meter ?

When it switches, the notification also change from "fast charging" to "cable charging" or something like this.
If it is still displaying "fast charge" I really doubt that Samsung would charge it normally. More than that, it would be something everybody will brag about and be a well known issue and it is the first time I hear about it. For wireless charging yes, I heard this...but never for cable charging.
Sent from nowhere over the air...

Rapier said:
When it switches, the notification also change from "fast charging" to "cable charging" or something like this.
If it is still displaying "fast charge" I really doubt that Samsung would charge it normally. More than that, it would be something everybody will brag about and be a well known issue and it is the first time I hear about it. For wireless charging yes, I heard this...but never for cable charging.
Sent from nowhere over the air...
Click to expand...
Click to collapse
There are results when you google it, for the S7 and S8, I guess it's not that big of a deal because it displays "fast charging" and because people expect the phone to charge slower when active. Fast charging while being used was also the big selling point for "Dash charge" the fast charging tech from OnePlus.
It also says so in the manual on Page 12 :"You cannot use the fast charging feature when the screen is turned on. Turn off the screen to increase the charging speed" http://downloadcenter.samsung.com/c...G935_UM_EU_Marshmallow_Eng_Rev.1.0_160219.pdf
But to see it with your own eyes, just get yourself a cheap USB power meter and measure it

quick charge 4.0 wall charger

Is this one Tenker, 60W Adapter with PD/QC4.0 truly quick charge 4.0 certified or just QC 4.0 compatible?
What QC 4.0 chrager would you advice?
I'd prefer one with 3-4 USB ports, capable of charging 3 phones/tablets at once

I suggest you check out the Razer charger. They are a very trusted, high end company.
Razer Wall Charger for Phone https://www.amazon.com/dp/B077968S1F/

This phone supports QC 4.0? I looked on official LG site and it only says 3.0.

id3alistic said:
This phone supports QC 4.0? I looked on official LG site and it only says 3.0.
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https://www.qualcomm.com/media/documents/files/quick-charge-device-list.pdf

id3alistic said:
This phone supports QC 4.0? I looked on official LG site and it only says 3.0.
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Correct, but it supports QC4.0 (as confirmed by others). May be two possible reasons 1) Bad marketing 2) The included charger is only QC3.0 (Why LG, why...its you flagship phone, show some respect and love)

It says
"These devices contain the hardware necessary to achieve Quick Charge 4/4+. It is at the device manufacturer’s
discretion to fully enable this feature."
I do hope it's enabled by default.

aerowild said:
Correct, but it supports QC4.0 (as confirmed by others). May be two possible reasons 1) Bad marketing 2) The included charger is only QC3.0 (Why LG, why...its you flagship phone, show some respect and love)
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Well QC4.0 chargers are almost none existant, that's why

A better QC 3.0 charger than the original (with more amps / 12 volt) can decrease charging time?

Hi
Has anyone tried this charger ?
I did not find any Videos on Youtube or orther sites selling it
What got me Interested in this charger was it has 2 Usb ports
1 of QC 3.0 & orther of QC 4.0
do not know if it works
See it here -
https://www.aliexpress.com/item/USB...e946-4a73-b356-c931053a86c8&priceBeautifyAB=0
Cheaper at Amazon
https://www.amazon.com/gp/product/B07BS8LXW9/ref=s9_acsd_hps_bw_c_x_1_w?th=1
Found One more -
https://www.amazon.com/Charger-Deli...fkmr1&keywords=Huawei+QC+4.0+Charger+60w+dual
Seems by Next year we will have QC 4.0
Usb Quick Charge 4 ports
https://www.amazon.com/dp/B07BNG29CG/ref=pd_luc_rh_sspa_dk_huc_pt_sub_1?psc=1
Please Share if you get any Info on this or any Similar DUAL Quick Charger like this
Thanks

mikimay said:
It says
"These devices contain the hardware necessary to achieve Quick Charge 4/4+. It is at the device manufacturer’s
discretion to fully enable this feature."
I do hope it's enabled by default.
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Yeah the 845 supports it but i dont think LG has enabled it in firmware.
Im just excited we have fast wireless charging thats useable.
Kind of like bands, the radio will do them all but most are firmware specific.
Sent from my LM-G710 using Tapatalk

before buy qc 4.0 charger i think the first step is create a mod that enable quickcharge when screen is on and possibility of increase max charging current to 3 amp
notice that when screen is on max current is around 1A and when is off is around 2.2A
so i think is useless buy an expensive charger when the firmware is limited to these values

darix96 said:
before buy qc 4.0 charger i think the first step is create a mod that enable quickcharge when screen is on and possibility of increase max charging current to 3 amp
notice that when screen is on max current is around 1A and when is off is around 2.2A
so i think is useless buy an expensive charger when the firmware is limited to these values
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Click to collapse
Exactly, we need a custom kernel to have the charging amperes to be changed manually which is really cool. If we have a really cool custom kernel, the CPU governors should preset customisable governors (for smooth performance) and for the charge values, just look for a 3A charger, with the Kernel Adiutor change the values. Meaning the benefits of rooting gives us the complete freedom of our Android! If a 4A charger is detected by the kernel manager app, the charge values should show as "upto 4A even with the screen on! Then no need to be jealous of Dash Charging of One Plus!

so... if u bought a quick charge 4.0 brick... will it charge the g7 faster than QC 3.0?

akshaythakor said:
so... if u bought a quick charge 4.0 brick... will it charge the g7 faster than QC 3.0?
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Click to collapse
BTT....I'd like to know this too.

darix96 said:
before buy qc 4.0 charger i think the first step is create a mod that enable quickcharge when screen is on and possibility of increase max charging current to 3 amp
Click to expand...
Click to collapse
Why? So G7 could pave the ways of Galaxy Note 7 and if not burn in flames then at least loose 50% of battery capacity in half a year? Sorry I'm not enlisting to shoot myself in the foot and throw expensive $700 phone in half a year to garbage can just because
Quick Charge 4.0 doesn't bump currents to 3A, it's not working that way. It bumps voltages to 20V instead

Billy Madison said:
Why? So G7 could pave the ways of Galaxy Note 7 and if not burn in flames then at least loose 50% of battery capacity in half a year? Sorry I'm not enlisting to shoot myself in the foot and throw expensive $700 phone in half a year to garbage can just because
Quick Charge 4.0 doesn't bump currents to 3A, it's not working that way. It bumps voltages to 20V instead
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Click to collapse
Yes, and no, i think the only one "problem" (or protection?) is the limit at 1 amp when the screen is unlocked, 20 volt i think isn't so useful if we use a good usb cable

darix96 said:
Yes, and no, i think the only one "problem" (or protection?) is the limit at 1 amp when the screen is unlocked, 20 volt i think isn't so useful if we use a good usb cable
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Click to collapse
But, even Samsung said and officially stated that after Note 7 fiasco they made same limit of 1A when screen is unlocked to prevent fast battery degrading. Samsung knows better then XDA uses, I think

Billy Madison said:
Why? So G7 could pave the ways of Galaxy Note 7 and if not burn in flames then at least loose 50% of battery capacity in half a year? Sorry I'm not enlisting to shoot myself in the foot and throw expensive $700 phone in half a year to garbage can just because
Quick Charge 4.0 doesn't bump currents to 3A, it's not working that way. It bumps voltages to 20V instead
Click to expand...
Click to collapse
It's not 20 volts. That's way too much for a battery. It's actually 9v + 2 amps. 20v it's mostly for Tables i think.

LameMonster82 said:
It's not 20 volts. That's way too much for a battery. It's actually 9v + 2 amps. 20v it's mostly for Tables i think.
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9 Volts isn't even Quick Charge 3.0, it's legacy QC 2.0.
QC 3.0 & 4.0 compatible phones can get charged from 20V, 12V, 9V and 5V

This is the one I use:
https://www.aukey.com/products/quick-charge-3-0-wall-charger-pa-t9
But if I plan ahead, I try not to use it very often. It works well, it's just that the long-term health of my battery benefits from slower charging.