yashsingh1/xdaforums huggingface dataset:
[Sprint Samsung Galaxy Note II] Shadowpaw:
Just was wondering if anyone has run into this issue. I have tried flashing zips Odin and apps to install recoveries. Any version of TWRP I install will just put the phone in bootloop til I Odin a diff recovery. I have tried googling around and only thing I could get is maybe my motherboard going out. I know when I was on Whomp 4.1.2 I had always used twrp before 4.3 came out. I still have no Knox boot loader and never have had Knox on phone either. Could this just be a sign that I have corrupt memory sectors ? Any help or tips appreciated. Just trying to get phone to last til note 4. Other things I've done is even unmod back to old firmware and let it ota all the way to mc2 so I don't get a knox boatloader. Thanks again
[Sprint Samsung Galaxy Note II] jlmancuso:
If you want twrp you need one of the versions before 2.7. Thing is twrp does not handle selinux context so it wont work on tw 4.3-4.4.3 and aosp 4.4.+.

I would suggest philz 6.07.9 it handles everything perfectly. So give it a shot and still have problems let me know.
[Sprint Samsung Galaxy Note II] Shadowpaw:
I've read doesn't work on new versions but I 1st had the issue start months ago on 4.1.2 whomp I rebooted to recovery one day after on same ROM over 2 months not a issue and boot loops started then and haven't been able to use twrp since. Last night I finally wanted to try a 4.4 ROM and thats why I just now was posting about it. I'm on philz currently. I'll just stick with what works. Thanks again!
[Sprint Samsung Galaxy Note II] jlmancuso:
In case you dont already know philz can use you old twrp backups also.
[Xperia Z2 Accessories] KyleSforza:
Like I mentioned earlier in my other topic (sadly we can't edit topic titles)

Here is the proof that the Z2 does support QuickCharge tech. ;) Now all we need to do is find the QuickCharge certified adapters! Lets get to work guys! :D

http://www.qualcomm.com/snapdragon/blog/2014/06/04/quick-charge-20-has-arrived
[Xperia Z2 Accessories] Einride:
Just a heads up, a notice from that blog post:

Emphasis mine. So while the hardware support might be there, it does not necessarily mean that the Z2 has it enabled yet/properly.

Also, finding good information on those adapters mentioned wasn't easy. Let's hope they hit market sooner rather than later.
[Xperia Z2 Accessories] KyleSforza:
Sony is enabling them in the very next update, or so I heard. ;)

Right now finding the charger is the issue. :cowboy:

Here's a review by someone with a Z2 and one of those chargers :

http://pcmanabu.com/xperia-z2-so-03f-charge/
[Xperia Z2 Accessories] farfromovin:
Dude, that's a 1.8a charger from what I read on the translated page. You wanna talk about fast charging, pick up an Oppo Find 7 with VOOC... 4.2a and it uses it!
[Xperia Z2 Accessories] Einride:
Yes, 1.8A, but also at 9V DC, which is the key difference here. Quick Charge 2.0 apparently supports charging at higher voltages (9, 12 and even 20 in some cases).

Information regarding ChiPhy 100, an IC that implements Quick Charge 2.0 and describes the basics, including voltages supported by different classes of devices:

https://www.powerint.com/products/chiphy-family/chiphy
[Xperia Z2 Accessories] harrold11237:
Quoted from http://www.qualcomm.com/snapdragon/blog/2014/06/04/quick-charge-20-has-arrived :

Here are just some of the devices and certified accessories as of June 3, 2014:

Smartphones

Sony Xperia Z2

HTC One (M8)

Xiaomi Mi3

Samsung Galaxy S5 (Japan)

Sharp Aquos Zeta

Fujitsu Arrows NX
[Xperia Z2 Accessories] Einride:
Yes, we know this from the URL in the first post, and like I mentioned above, Qualcomm states the following in that blog post:

The Z2 has the hardware required, but it doesn't mean Sony have enabled this or made sure it's working properly. With barely any available chargers supporting Quick Charge 2.0, we'll just have to wait and see. There's no reason why it should not be fully enabled, but I'm a cynic so I'd rather see it tested with the Z2 before I believe it :)
[Xperia Z2 Accessories] farfromovin:
Current is all that matters with charging times.
[Xperia Z2 Accessories] Einride:
You what now?! So all chargers should just use the lowest voltage possible since that doesn't matter anyway?

Power is what matters! Power = voltage x current. Going from 5V to 9V while still pumping out 1.8A means the (potential) power output is almost doubled. Yes, you'll lose some of the power due to heat, but the power still increases a lot. This of course implies that the device can handle a higher voltage, which it seems Quick Charge 2.0 devices can.

Quick Charge 1.0 was device-only and therefore only 5V, but could boost the current output when the battery was (close to) discharged, which reduced charge time. Quick Charge 2.0 requires both the device and charger to support it and because of that it can also output different voltages, depending on what the receiving end supports/negotiates.

http://www.qualcomm.com/chipsets/quick-charge#features

Note the last point: you won't fry any devices if they don't support QC 2.0, the charger will just act as a regular 5V USB charger then.

Sadly, there are no numbers out there from charging a supported phone using Quick Charge 2.0. It would be very interesting to see which voltages and currents used at various stages throughout the charging.
[Xperia Z2 Accessories] V4LKyR:
So, let's go find a charger with 9V DC and 2 A output... and connect it to Sony Xperia Z2! Do you think that'll work good?
[Xperia Z2 Accessories] Einride:
Of course not, and I've never claimed that either. If you have a QC 2.0 capable charger AND device, it can apparently charge at higher voltages, because both devices support it!. Nowhere did I state that the Z2 would be fine being hooked up to a 9V/2A "dumb" charger.
[Xperia Z2 Accessories] rpcherrera:
The OPPO Find 7/7a is already using this, although its called VOOC charging.

The charger is rated 5V == 4.5A

more about VOOC Charging
[Xperia Z2 Accessories] V4LKyR:
What is a "QC 2.0 capable charger" ? As I've seen that charger on that Japanese site, it supports 5V, 9V and 12V. Doesn't mean that the charger transfers power on all these voltage levels, right? It selects one of them. So I'm saying, we can select the 9V 2A and go try it. Or 12V 1.25A.
[Xperia Z2 Accessories] Einride:
From the datasheet for that ChiPhy 100 IC, https://www.powerint.com/sites/default/files/product-docs/chiphy_family_datasheet.pdf:

There's also an "output voltage lookup table" being used to select the voltage used, based on what the device asks for (see table 1 in the data sheet):

D+	D-	Output	Switch Status
0.6V	0.6V	12V	N1 = N2 = On, N3 = Off
3.3V	0.6V	9V	N1 = On, N2 = N3 = Off
3.3V	3.3V	20V	N1 = N2 = N3 = On
0.6V	GND	5V (default)	N1 = N2 = N3 = Off

I heard about the Oppo Find 7's new charging tech, nice to see some more detailed information on it. VOOC seems to use what is essentially several battery cells and a battery pack with 8 contact points (not really any issue if it's an internal battery pack). It also requires a 7-pin USB cable it seems. Pretty clever, but requiring special USB cables is a bit of a downer. I'd rather have standardized cables and specialized chargers, but maybe that's just me :)
[Xperia Z2 Accessories] Zebra-Snow:
:D:D:D:D Brilliant idea , lets make that happen
[Xperia Z2 Accessories] jameswood24:
Nice, its a DoCoMo charger, and only 2,376 Yen ($23.76) here in Japan..Will have to see if I can get one at the DoCoMo shop....
[Xperia Z2 Accessories] infinitylook:
cable

I'm planning to buy a quick charger for my Z3. Maybe i'll buy this one. I just want to know, what cable should i use? or will the default cable of the Z3 would enable quick charge? Here is the charger i'm planning to buy.

http://www.pure-gear.com/extreme-usb-wall-charger-849.html
[Xperia Z2 Accessories] The Driv3r:
I have an love it. Great build quality and definitely the fastest charger I've ever had. Pick up a cord to support the speed though.

Read through, you'll see the cords I'm using.

http://xdaforums.com/xperia-z2/accessories/running-official-qc-2-0-chargers-t2919105
[Xperia Z2 Accessories] infinitylook:
Thanks. Do you own z2 now and the pure gear? How about if you use the default cable from Sony,will it charge as fast? And also, can it quick charge at the magnetic port?
[Xperia Z2 Accessories] The Driv3r:
The oem cable won't charge as fast. In my tests it topped out alot lower. Get the one I listed first (pawtek). It charges very fast, no heat an is extremely solid.

I use it both on my z2 d6503 an z2 tablet.

The oem mag charger isn't as fast, even with puregear attached. That said I don't use the quick charge overnight, only when I need it.
[Xperia Z2 Accessories] infinitylook:
Have DOCOMO QC 2.0

I have a Docomo QC 2.0 that i'm using with my Z3 and it's fast but nowhere the QC 2.0 quoted charging time. While charging also I check voltage being given in the phone and it doesn't exceed 4.7 which means that it is not really enabled on the Software side for the Z3, might as well for the Z2, and Z3 compact.
[Xperia Z2 Accessories] Haldi4803:
[MENTION=5281892]infinitylook[/MENTION]

How did you check voltage?

Might be very well that such USB adapters block the charger from recognizing QC2.0 capability from the phone. Z2 "Should" have working Quick Charge 2.0 as it's advertised with it. If not american people would sue sony^^
[Xperia Z2 Accessories] infinitylook:
I used software current widget from playstore. This detects the current volt and ampere being drawn from the charger. I guess it's not enabled in z3 and didn't saw anything in the ads that it says it has a working QC 2.0 out of the box. I directly plugged it on the usb port. The docomo charger comes with its own cord that is not permanently attached on the brick (it's not a solo brick like the stock charger).

---------- Post added at 11:33 AM ---------- Previous post was at 11:31 AM ----------

I really think it's not enabled on the software side. From my previous experience. even galaxy s5 takes up to 5v with it's stock charger (s5's stock charger is rated 5v 2000mah).i haven't tried my docomo on that s5 though because this charger came late
[Xperia Z2 Accessories] arvinivra:
Xperia Z2 support quick charge 2

http://www.gsmarena.com/sony_xperia_z2-6144.php

see FEATURES under color
[Xperia Z2 Accessories] infinitylook:
Z3 has that listed also on GSMarena and i think it's not activated because mine is not charging 60% in 30min. I will contact the developer section of sony to confirm
[Xperia Z2 Accessories] zycamaniac:
Just to let you guys know, I did some simple charging experiment with my Z2. Not QC 2.0 but just with thicker USB cable and a power supply with slightly elevated voltage:

Battery Level is around 60%

OEM AC adapter + OEM USB Cable + OEM Dock = 1.1A charging current

OEM AC adapter + Samsung Nexus 10 (20AWG) USB cable + OEM dock = 1.36A charging current

Samsung Nexus 10 AC adapter + Samsung Nexus USB cable + OEM dock = 1.71A charging current.

Samsung AC adapter outputs about 5.4V, thus there's more room to allow it to drop before the voltage drops too low due to cable resistance. I was quite surprised to see it go past 1.5A. I also plan to mod my USB power bank to have it send out 5.5~5.6V instead of 5.05V, this should speed up charging considerably for devices that cap off current when voltage is too low.

Since I don't really plan to use that USB port for charging EVER, I'm wondering if the docking contact can take QC 2.0 level voltage like 9V or 12V. Not that I plan to pump that kinda voltage directly on my phone without clear evidence that it can take it from the docking port tho.
[Xperia Z2 Accessories] infinitylook:
I don't think that the dock can take more 9v input.
[Xperia Z2 Accessories] bukva:
today i received tenergy turbo usb charger which is QC 2 compliant.

unfortunatly my Z2 doesnt charge more quickly.

I even experimented with note 4.

Z2 + note 4 fast adaptive charger --> normal charge

Z2 + tenergy charger --> normal charge (charger lights blue which means no fast charge)

Note 4 + note 4 fast adaptive charger --> fast charge

Note 4 + tenergy charger --> fast charge (charger lights green which means fast charge)

so it looks like myne Z2 has not enabled on software side QC 2.0 fast charging :(
[Xperia Z2 Accessories] infinitylook:
Now that is one proof that Z2(and i assume,Z3 as well) don't have QC 2.0 enabled. I hope on the next updates it would be enabled because I'm not yet willing to go the bootloader unlock route because of this drm issue. It would be really disappointing. I would be getting the Z3 tablet compact soon and it would really be disappointing. QC 2.0 is a very great feature especially for tablets

---------- Post added at 07:48 AM ---------- Previous post was at 07:44 AM ----------

I don't think magnetic dock would handle 9v. QC 2.0 can be triggered when the phone sends a signal to the charger regarding battery level and the voltage it would need and i guess theres no controller to vary voltage draw attach on the magnetic port. Its just a plain simple charging port.
[Xperia Z2 Accessories] infinitylook:
So did you got your docomo charger? Got mine on my z3 bht doesn't make difference since QC 2.0 isn't enabled in the software side. It charges "a bit" faster though because of 2000 mah output of charger but it seems max that Z3 Takes is only 1500-1600nah. Never seen it go beyond that charging rate
[Xperia Z2 Accessories] Haldi4803:
So...

Who's gonna start a riot on official SONY forums that QC2.0 doest not work ? ^^
[Xperia Z2 Accessories] unfaix:
I think it does work, unless this charher isnt quick charge 2 compatible.

http://www.sonymobile.com/global-en/products/accessories/quick-charger-ep881/
[Xperia Z2 Accessories] Haldi4803:
I that's quick charge 1.0 with 1.5A
[Xperia Z2 Accessories] jameswood24:
I didn't get the actual DoCoMo QC Charger, but I got a ELECOM MPA-ACQA1518WH and another USB type QUALITY TRUST JAPAN

QU-024BK QC from Yodobashi here in Japan...I actually think my Z2 charges quicker, but maybe that's just me.....
[Xperia Z2 Accessories] infinitylook:
Well yeah I guess docomo works as well. I come to realize maybe current widget is not that accurate really or maybe the z3 quick charges with docomo but still limited with the kernel.
[Xperia Z2 Accessories] RoyVegasPinoy:
So I've been following this for a while now. I promised my girl friend quick charge when I bought her this phone. Is the straight answer, no, it doesn't support it (yet)?
[Xperia Z2 Accessories] infinitylook:
No certain answer on that. Because benchmark doesn't give quick charge 2.0 results (doesn't charge as fast as quoted times and voltage level is not on quick charge level). Though using this quick chargers provide significant boost but not really that big for it to be classified as quick charge.
[Xperia Z2 Accessories] .LEONARDO.:
Hey Guys... Is there any way to activate Xperia Z2 quick charge 2.0? Mine takes almost 4 hours to get a complete charge, from 0 to 100% with original Sony EP880 1.5A charger and cable. I thinking about buying one magnector X adaptor and a Teenergy 18W QC 2.0 charger. Even if It could not bring me QC 2.0 fantastic charging times... Could it al least decease my actual 3h40min charging time?

Thanks!
[Xperia Z2 Accessories] infinitylook:
Yes it can bring down charging time
[Xperia Z2 Accessories] Haldi4803:
From this thread:

http://xdaforums.com/xperia-z2/general/quick-charger-2-0-z2-t2994165/post58125379#post58125379
[Xperia Z2 Accessories] Criminal.K:
I will charge my Z2 using 2.0A charger~~~
[Xperia Z2 Accessories] XbLaCk0uT:
Would using an iPad charger help? Output 5,2V, 2,4A = 12 W

Even if so, I would need a proper USB cable I guess?

Im considering buying Z2 and quickcharge feature is one of the things that matters, but since it doesnt seem to work... :(
[Xperia Z2 Accessories] infinitylook:
Lit might help charge faster. Default xperia charger cable should be good
[Xperia Z2 Accessories] giokaxo:
Hello guys.... Today delivered my tenergy quick charge 2.0 charger but it doesn't charging my xperia z2 nor xperia z3.... Can you help me??
[Xperia Z2 Accessories] bukva:
Find my post earlier in thread..
[Xperia Z2 Accessories] dany547:
i have a Z2, but the charger is 850mHa output at 5v. Then i got a 5v 2A one, the phone charged a little faster, but nothing major was changed. Then i got a witget installed so i can measure the Mha that go in the phone, but the current oscillates with both chargers, different cables even in the PCs USB.

What may be the problem? Also the battery is lasting me like 4H screen ON with 50m of candy crush and 2 days in standby

https://www.youtube.com/watch?v=RyQ09Tt4Xeg&feature=youtu.be
[Xperia Z2 Accessories] yuskhayru:
This is the reply from one of the Moderator in sony support forum when im asking about the Z2 - quick charge 2.0

From what he said,

only the japanese variant SO-03f

does support QC2.0. :eek:

*Need someone with japanese variant version to confirm this.
[Xperia Z2 Accessories] bluheart:
Off topic :eek:

How to make my Z2 Japanese :P
[Xperia Z2 Accessories] Haldi4803:
Only give it sushi to eat and dunk it in ramen every week.
[Xperia Z2 Accessories] xaadilhx:
I generally use my samsung galaxy tab charger with my z2 because the Sony's 1500mah charger is very slow. An old htc 1a charger is faster than Sony's charger using Sony's usb cable.

Using the samsung official 5v 2a charger with a cheap magnetic 2 meter cable provides around 1300mah. Charge voltage starts around 4.1 rising to 5v slowly. 2 hours will achieve near 80% at 1% every 1 minute 29 seconds. Nearer to the end of charge the rate and voltage decreases, so it's slow charged at that point until full.

I haven't recorded the figures but the phone is accepting higher charge current, so I try to find a good balance to avoid too much heat. A higher quality magnetic cable will likely be faster but may also generate more heat, but not much problem on cold winter desks or surfaces.

If Sony wanted quick charge they would have an official charger, for now they aren't bothered.

It would be good to know the official figures and charger, rate etc using the z3. Is it still a 1.5a charger?
[Xperia Z2 Accessories] infinitylook:
What app did you use to record voltage?
[Xperia Z2 Accessories] xaadilhx:
I normally use a combination of apps, current widget, battery by Macropinch & system monitor to try and verify accuracy and timing.

I tried to do a full charge with the original charger & Sony usb again and closely checked the details, 3 apps running, connectivity off, night filter active while screen on to check figures but otherwise screen off, it's been so slow via usb cable.

from 1% battery 28c, 3.6v 1a 1059ma max

After 1 hour 33% - 32.5c 3.9v - up to 1a similar current fluctuating but mostly near 1a.

11:40 2 hours 65% 32c - 4.1v 850/900ma sight drop in charge current.

Didn't complete charge with Sony charger, it's just too slow but of course after 80% charge speed is slow also.

Can anyone verify whether this Sony charger is ever supplying the quoted output?
[Xperia Z2 Accessories] yuskhayru:
Whats the different of heat between the samsung tab and sony stock charger? Did the samsung tab charger heat the battery so much?

Sent from my D6503
[Xperia Z2 Accessories] Haldi4803:
This and That on an EP880 1.5A

Tested via Hardware.... i don't trust no Software app!
[Xperia Z2 Accessories] xaadilhx:
Yes I've noticed software gives various results sometimes more fluctuation in charge.

What I can say for sure is the original charger & cable via usb port is the slowest charge.

Still with the Sony magnetic charger it's slow but ...

Using my Samsung 2A charger via the magnetic port it's significantly faster charging. Meaning saving 1 hour off charging time. Full charge from 1% in 2:30 minutes. Better efficiency with Sony magnetic dock than genetic device.

Temperature goes to around 37c at higher charging rate, over 40c if device is in use.
[Xperia Z2 Accessories] zycamaniac:
Samsung 2A charger's voltage is a little bit over 5V, at between 5.35 and 5.45V. With a very thick and low impedance cable, you can have the phone (Sony Z2) charge up to 1.7A constantly, either with magnetic dock or microUSB.

I'm a control freak, which is why I got the dongles to tell me how much current is the phone taking in. If you do not provide a "raised voltage" supply, the voltage will drop too low for the phone to draw 1.7A, with standard 5V USB power it will stop at around 1.3A even with 18AWG micro USB cables. With even thinner cable and standard 5V supply, it will drop to about 0.9A.

The phone detects the voltage change in input power, and is very careful to stop drawing higher current if voltage drops too much. This is done to protect the power supply from overload, and it kept increasing current to the point where the voltage hits the stop point set in the phone. I think Amazon is using a similar system on their tablets, this allow the phone/tablet to adept to almost any power supply without blowing them up. But I think Sony is just being a little too careful there, and a bit too stingy with their USB cable. That cable is just not passing enough current/too much resistance!
[Xperia Z2 Accessories] zycamaniac:
Anyone got their Z2 running the new lollipop from Sony and see if QC 2.0 is enabled or not?
[Xperia Z2 Accessories] infinitylook:
Have noticed this on my z3. Is there a way to check on the kernel? Definitely My Z3 charges slowly after this lollipop update.
[Xperia Z2 Accessories] Vogie:
The Sony Xperia Z3 and Z2 support Quick Charge 2.0 but there's a catch, it's only the Japanese variants. The Sony Xperia Z3 Compact, Xperia Z3 Tablet Compact and Xperia Z2 Tablet all support Quick Charge 2.0 internationally.

src:

http://www.pocket-lint.com/news/132825-what-is-quick-charge-2-0-and-why-do-you-need-it
[Xperia Z2 Accessories] cimihendriks:
http://xdaforums.com/crossdevice-de...ick-to-quick-charge-z2-international-t3141254 what do you think?
[Xperia Z2 Accessories] Haldi4803:
Well.... Maybe..... Maybe not

Gesendet von meinem D6503 mit Tapatalk
[Xperia Z2 Accessories] showlyshah:
This will be the last thing you all will ever want to know....

http://xdaforums.com/xperia-z2/development/sony-secret-revealed-qc-2-0-t3163490
[Xperia Z2 Accessories] Haldi4803:
Don't miss this deal on Amazon!

9$ for an Aukey QuickCharger 2.0 with the cupon code DJPX97DU

Oh yeah, and even IF our Z2 doesn't support Quickcharge 2.0 this thing charges wayyyy faster than the Stock EP880 charger!
[Xperia Z2 Accessories] krazzdav:
code expired
[Xperia Z2 Accessories] bycannn:
that's great

Now ı need to find a quick charger

Thanks Qualcomm.
[Galaxy Note 8.0 (Tablet) Q&A, Help & Troubleshooti] sh_farbod:
Hi there!

is there anyway to use note3 S-pen menu(like picture) on note 8.0 ?

Its N5100 and 4.4.2 official rom.

thank friends!
[Galaxy Note 8.0 (Tablet) Q&A, Help & Troubleshooti] CCallahan:
Still being worked on for 100% functionality but almost everything is working: http://xdaforums.com/showthread.php?t=2794785
[Galaxy Note 8.0 (Tablet) Q&A, Help & Troubleshooti] sh_farbod:
Big thanks dear CCALLAHAN!

But could you tell me whats this error?

I just start in cwm, click update from sd card, and see this error.
[Galaxy Note 8.0 (Tablet) Q&A, Help & Troubleshooti] sh_farbod:
This error!
[Galaxy Note 8.0 (Tablet) Q&A, Help & Troubleshooti] CCallahan:
Some recoveries won't flash it because of signature verification. I recommend installing Philz Touch (CWM) recovery and using that to flash the Air Command mod.

Download the latest Philz zip from this thread, boot into recovery, and flash: http://xdaforums.com/showthread.php?t=2552657
[Galaxy Note 8.0 (Tablet) Q&A, Help & Troubleshooti] sh_farbod:
ok great man! i do it, every thing is ok about spen, but it disable my wifi, means wifi is off and dont go on.is there any solution?
[Galaxy Note 8.0 (Tablet) Q&A, Help & Troubleshooti] CCallahan:
Did you flash the latest mod and the correct version? Might have to do a restore and flash again using newest and correct one for your device. The original mod broke Wifi on 5100 it seems.

My suggestion is to just flash civato's rom. It has the kernel fixes you need, SPen accuracy is spot on (unlike stock), has Air Command install option, and many customization options. Still based on stock rom so everything works.