Develop Bugs

does it use qc 3.0 or a LENOVO proprietary standard? read here....

from gsmarena:
We initially thought that the Rapid charging tech used by Lenovo must be Quick Charge 3.0 since the P2 uses a Qualcomm chipset. However, our third-party QC3.0 charger didn't charge the P2 particularly fast, so the jury is still out on whether Lenovo is using a proprietary charging technology.
so... my car charger and my power bank, BOTH qc 3.0 are useless with this phone??

Our charger is a basic 12V 2A charger, giving a total of 24W Power. I don't see anything special in the charger. It's probably not the usual QC we had heard of. I have seen in some reviews though about this charging technology being different and very interesting.

A problem would be: what charger for the car???

i have the phone and i can confirm it only uses the QC feature with the included CHARGER
no way to use any qc 2/3.0 charger....mmhhh bad decision lenovo!

realista87 said:
i have the phone and i can confirm it only uses the QC feature with the included CHARGER
no way to use any qc 2/3.0 charger....mmhhh bad decision lenovo!
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I don't see your point. This charger outperforms any other chargers in the market even turbo and dash chargers.
Why do you ppl always end up blaming others.

because i am against the proprietary charging algorithms..... dash charge is great? NOPE.... it forces you to use a special cable, a special charger, no 3rd part suppliers... high price of chargers, is it a good move for the customer?
same thing for this lenovo charging solution, ok the fastest one, but if i lose che official charger i am stucked with the NORMAL 5v 2a solution....
this is not a great thing imho, and all power banks i have qith 7/9/12v qc features are USELESS with the lenovo p2......

You're thinking only voltage my friend, check if your power bank can supply 2A at 12V. Probably no. Mostly all power banks bottlenecks at 1.5A.

So, there isn't a way to use another charger for fast charging?

Siva Mk said:
You're thinking only voltage my friend, check if your power bank can supply 2A at 12V. Probably no. Mostly all power banks bottlenecks at 1.5A.
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my xiaomi power bank 2 20000mah does have qc3.0 and it's tested to arrive higher than 2A at 12v ... but even if other chargers are "only" capable to reach 12v at 1,5A ... it is still a missed quick charge because p2 uses proprietary charge coding
ok this is not THEp roblem, but just a con. like for dash charge people repeat at eveyone that oneplus is the fastes... but hey without an available dach charge power bank... that phone is s "joke"

I have another QC3.0 wall charger, when i plug to P2 it's out put at 2A only not fast charge.
But when i plug original charger from P2 to another phone fsst charge status is become.
???

How many times will you open new topic for the same problem ?
https://forum.xda-developers.com/lenovo-p2/accessories/replacement-charger-party-charger-t3662211

Any suggestions on Dash chargers for Z2plus ?

Hello Everyone,
I am looking for a dash charger for z2plus , I just used my friends OP5 dash charger for z2 plus it works like a champ. But OP5 dash charger is expensive like 2k, any other suggestions on chargers ??
Thanks in Advacne !

I would say.. don't go for anything except original charger.. it can fry some important diodes on your board and I am not kidding happened to me twice...
First time, battery was empty, and phone never woke up, I had just installed custom rom maybe because of that...
Second, exchanged phone, new phone, stock everything.. and it happened again..
Then I realized it was because of the 3t charger...
Read few posts, and found out if used some qc 3 chargers it can fry the diodes cx68 something..
Better read those post before investing money...

Nonsense! QC tech and Dash Charge tech are totally different. If used, any oneplus dash charger will charge your Z2+ like a normal charger and not any faster. Dash Charge Tech is Oneplus's Proprietary and won't work on any other company phones. And Regard to Best QC3 Chargers, Only and Only buy & use Qualcomm approved QC chargers. They are tested by Qualcomm and will almost never cause any issues. The List of approved chargers can be found on Qualcomm's website.

After buying the Qualcomm Fast charger can this device charge quickly ???
Sent from my ZUK Z2132 using Tapatalk

developer01 said:
After buying the Qualcomm Fast charger can this device charge quickly ???
Sent from my ZUK Z2132 using Tapatalk
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The Zuk Z2 plus cannot quick charge (No QC2/QC3), atleast yet. Some say the hardware isn't present in the device but i believe with the other group that say it's locked in kernel. In the Fans page, a dev has posted a mod to enable QC 9V charging on kernel level. If you or anyone has QC charger feel free to try it (UNDER YOUR OWN RISKS). At Stock Charging Capabilities, the device can charge with 5.25V 2.5A max. You don't need QC chargers for this, the lenovo charger that comes in box is more than enough.
zukfans.eu/ community/ threads/ request-quick-charge-support-qc-3-0.2526/

1.5A on screen en 2.5A off screen all by 5V are the best charge number the z2 plus can do, so it does charge good but it's doesn't benefit from a dash or quickcharger like one plus phones do.
Quickcharging is charging at higher voltages for the same or sometimes even more amps. and since A*V= Watts you put more and faster the power in your battery

USB PD vs. QC 3.0 (QC4.)?

I just purchased an LG G7 ThinQ on Verizon in the US, coming from an LG Optimus G Pro, purchased in 2013. It's being shipped right now, so I don't have it to play with.
With that said, I'm a newbie to quick charging. I see that the phone comes with a QC 3.0 block, and that the phone is listed as being QC 4.0 compatible, as per Qualcomm's website.
I'm looking to order all new cables and chargers to take advantage of the higher charging speeds that this phone can allow. I'm not understanding though whether I'd be better off buying a car charger that is QC 3.0 or has USB PD. I realize that the USB PD would be the way to go for laptops and larger items, but for our phone, is there any difference? I do realize that I'd need a dual-ended USB C cable for the PD charger.
Also, has anyone tried using a QC 4.0 charger on the phone, and although Qualcomm says the phone has the 4.0 hardware, has LG enabled us to use it?

So the LG chargers can deliver 9v 1.8A.
The phone will recognize my 18w and other 45w PD charger, but I haven't managed to see any difference in the charging speeds, and more annoying, charging is pretty slow when screen is on.
I wanna buy a USB meter (PD compatible) to see what's the phone actually asking for, but I assume that it just sits at 15w max.
The reason I have a PD charger is because it allows you to have longer USB-C cables and it's compatible across more devices, like I can fast charger my Huawei Mate 10 pro with it, you can also charge iPhones with it.

andygold said:
I just purchased an LG G7 ThinQ on Verizon in the US, coming from an LG Optimus G Pro, purchased in 2013. It's being shipped right now, so I don't have it to play with.
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This thread could be useful for you too: https://r.tapatalk.com/shareLink?ur...share_tid=3787343&share_fid=3793&share_type=t

USB PD is an entirely different language than QC 2-4. They negotiate and handle power different from each other. If you plug USB PD into a QC device it should default to 5v, 1 or 2 amp standard charging.
Use only QC 3.0+ equipment. That will get you the rapid charge you're looking for as it speaks the right language for the phone. I dont believe LG has enabled QC4 standards in the firmware although the chip supports it.
LG G7 is also wireless rapid charge, i get an almost QC speed on a 15w ravpower and umdigi wireless pads. Took me a few to find ones that were quality and charged fast. Most of the "10w" chargers dont actually put out 10w so they dont charge fast.
Sent from my LM-G710 using Tapatalk

datafoo said:
USB PD is an entirely different language than QC 2-4. They negotiate and handle power different from each other. If you plug USB PD into a QC device it should default to 5v, 1 or 2 amp standard charging.
Use only QC 3.0+ equipment. That will get you the rapid charge you're looking for as it speaks the right language for the phone. I dont believe LG has enabled QC4 standards in the firmware although the chip supports it.
LG G7 is also wireless rapid charge, i get an almost QC speed on a 15w ravpower and umdigi wireless pads. Took me a few to find ones that were quality and charged fast. Most of the "10w" chargers dont actually put out 10w so they dont charge fast.
Sent from my LM-G710 using Tapatalk
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QC 4.0 is actually compatible with Power Delivery, Qualcomm did that in fear that Google would make PD mandatory.
And there can be handshaking between previous QC devices and PD chargers, since the most basic profiles are kind of standard (max 9v 2A).
So in this way I can fast charge a S8, the LG G7 and any other QC device with the PD charger and I can charge other PD and QC devices with my Huawei fast charger power bank (it's based on QC 3 delivering max 9V 2A).

Luinwethion said:
QC 4.0 is actually compatible with Power Delivery, Qualcomm did that in fear that Google would make PD mandatory.
And there can be handshaking between previous QC devices and PD chargers, since the most basic profiles are kind of standard (max 9v 2A).
So in this way I can fast charge a S8, the LG G7 and any other QC device with the PD charger and I can charge other PD and QC devices with my Huawei fast charger power bank (it's based on QC 3 delivering max 9V 2A).
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Funny i was just reading an article about that. I suspect that would be a firmware compatibility issue again, as in: did LG enable it.
Great feedback and perfect timing
Sent from my LM-G710 using Tapatalk

datafoo said:
Funny i was just reading an article about that. I suspect that would be a firmware compatibility issue again, as in: did LG enable it.
Great feedback and perfect timing
Sent from my LM-G710 using Tapatalk
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I just wished that phones would support higher charging rates via the PD standard.
I'm mostly sure that neither the S8 nor the G7 are taking full advantage of the max power output of their charger for long.
I thought that the charger might be under delivering, but connecting my PD 18w charger results in the same situation, I still need to measure it (need to buy a USB meter to have more details).
But using the same 18w PD charger I can charge the Mate from 20 to 50% much faster than I can charge the G7.

OP here. Just found this:
https://gtrusted.com/how-fast-the-p...s-battery-using-usb-power-delivery-30-and-pps
https://gtrusted.com/review/how-muc...rger-and-lg-g7-thinq-using-usb-power-delivery
https://gtrusted.com/review/lg-g7-thinq

quick charge 4.0

Everyone should know tbis phone ships with only a qc 3.0 charging brick but is fully 4.0 compatible. Shame on lg.
Just ordered me a 4.0 car charger

The Galaxy S10 is still using Quick Charge 2.0
Sent from my LM-V405 using Tapatalk

How do I root the LG X charge

dfwfreaks said:
It is LG, what were you expecting?
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LG makes decent products, even they can not compete with Samsung, but it helps to improve the diversity of the market!

did it work?
madcowintucson said:
Everyone should know tbis phone ships with only a qc 3.0 charging brick but is fully 4.0 compatible. Shame on lg.
Just ordered me a 4.0 car charger
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so did you get the Q.C 4.0 charger? did it charge faster? you might need a USB PD charger that can do at-least 21 watts.

LG is just imitating Samsung here, they did the exact same thing with my S8. I only ever fast charged that phone on my laptop.
I wonder if they're secretly trying to extend battery life, isn't fast charge rough on a battery?

seank88 said:
so did you get the Q.C 4.0 charger? did it charge faster? you might need a USB PD charger that can do at-least 21 watts.
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I do have the fast charger in my car I cannot say it charges any faster but I don't know if it's certified by Qualcomm. I got it from Amazon

45W?

There seems to be disagreement between Qualcomm and LG. On LG's website it says G8 is QC3.0 in "Power & Performance" section of their Specs page, while QualComm lists G8 as capable of QC4.0 (but not 4.0+).
https://www.lg.com/us/mobile-phones/g8-thinq/specs

madcowintucson said:
Everyone should know tbis phone ships with only a qc 3.0 charging brick but is fully 4.0 compatible. Shame on lg.
Just ordered me a 4.0 car charger
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Which charger did you get and how well does it work?

Old post, worth insisting.
Bought G8, Korean, bit it's the same, only some different bands.
Like previously said I've read QC 3 on LG US website, but QC 4+ on Qualcomm.
I've bought two Hama wall chargers, 3 and 4+.
I also use the 65W PD charger of my laptop.
All three have same exact charging time.
So, how can this be?
Shouldn't 4+ be faster than 3?
If yes, than the G8 it's indeed only QC 3...

Has anyone tried a QC 4 charger yet? How does USB PD speeds compare to QC 3/4? I'm coming from OnePlus and debating about what charger(s) to buy. What's been the fastest chargers?

Question Poco F3 charger. Decent?

Does anyone know if the charger poco f3 comes with supports quick charge 3+ that the phone also supports?

Not sure I follow your question.
The stock charger support quick charge 3.0+, the chipset support quick charge 5, but the phone charging is limited to 33w.

Nemix77 said:
Not sure I follow your question.
The stock charger support quick charge 3.0+, the chipset support quick charge 5, but the phone charging is limited to 33w.
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The phone comes as 33w quick charge 3+. My question was whether the 33w charger in the phone box charges with the quick charge 3+ protocol. I cant say it more simply than that.

When checked via CIT hardware test, it shows PD protocol.

Nemix77 said:
When checked via CIT hardware test, it shows PD protocol.
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Whats PD?

Pd is power delivery
I think the charger attached is using everything poco f3 is capable. Very fast charging speed.

From what I heard from another thread the Poco F3 has a usb 2 port with extra pinout for 33W PD communication with the charger

Sorry to resurrect an old thread, but I just found it through a search. From what I read, the QC system pays a royalty to Qualcomm because it is their proprietary technology, while PD is royalty free. The F3 has QC instead of PD. QC is much more efficient and produces less heat when charging a battery from what I read.
In the long run, try to use the QC charger that comes with the F3 to prolong the battery life (i.e. less heat generation while charging - heat's the real battery killer)
Hope this helps someone . . .

qu4k3r said:
Sorry to resurrect an old thread, but I just found it through a search. From what I read, the QC system pays a royalty to Qualcomm because it is their proprietary technology, while PD is royalty free. The F3 has QC instead of PD. QC is much more efficient and produces less heat when charging a battery from what I read.
In the long run, try to use the QC charger that comes with the F3 to prolong the battery life (i.e. less heat generation while charging - heat's the real battery killer)
Hope this helps someone . . .
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I only QC charge my Poco F3 and confirm that is cooler than PD.