yashsingh1/xdaforums huggingface dataset:
[General Questions and Answers] mjculross:
wire size vs voltage drop

OK, in place of my "gut feel" in my earlier post, here's just one website that allows you enter the parameters of your cable (size in AWG gauge, voltage, length & current) & then calculates the theoretical voltage drop through your cable: http://www.powerstream.com/Wire_Size.htm (scroll down to the bottom to find the calculator). For example, according to their calculations, a three foot cable using 24 gauge wires carrying 2A current would impart a little over a 0.3VDC drop. If your charger is supplying 5VDC at the source, then only 4.7VDC would make it to your phone for use in charging at the full 2A rate. Contrast this with a ten foot cable of the same size under the same conditions which suffers a little more than a 1VDC drop, resulting in only 4VDC being available at your phone at the full 2A rate for charging.

However, I would not expect the phone to continue to try to draw 2A of current under these conditions (particularly the 10 foot cable), else charging may not take place at all if/when the voltage is too low. Instead, I would expect that the charging circuit on the phone would diminish its current draw (to something LESS than 2A) in an attempt to keep the voltage closer to the desired 5VDC (or whatever the spec'd minimum is to charge the specific battery, assuming that the charger itself is putting out a nearly constant amount of power, somewhere near to its rated number of watts).

It's very likely because of this reduction in current that your overall charging rate is reduced (or to put it another way, your overall charging time is increased) on lesser size cables, etc.

YMMV . . .

Good luck & have fun !!

Mark J Culross

KD5RXT
[General Questions and Answers] bmather9:
Thanks for that explanation. It seems that even a 6 ft USB cable will significantly slow charging, and that a 10 ft even more so to the point that it may not even charge sometimes. So its looking like 3ft USB cables with AC extensions where necessary is the way to go. Maybe I'll try some 1.5 ft as well, but not sure how practical they will be for using the devices while plugged in, even with the AC extension.

If anyone has another opinion please voice it.
[One (M7) Q&A, Help & Troubleshooting] sitanshu91:
can any one help me how to stop the ota notification (i do not want to update)

its quite irritating

thnx
[Off-topic] TagEHeuer:
Hi everyone, after having a discussion with MikeChannon (Forum Administrator) about this, he suggested making a thread to see how much interest it would gather and how the XDA community would feel.

(Edit by Mike: I don't know much about WhatPulse, so I'm neither recommending it nor rejecting it).

What is WhatPulse?

Source: http://en.wikipedia.org/wiki/WhatPulse

WhatPulse is a keylogger!?!!? (always a worry for people)

http://lmgtfy.com/?q=is+WhatPulse+a+keylogger

Personally I've used it since 2006: http://whatpulse.org/TagEHeuer - not that I've used it much as I haven't really bothered with it.

I was thinking it would be a fun community group effort for everyone. They have thousands of teams on WhatPulse, it's just all in all a big load of fun! We'd make a team and just compete against other teams, it's also exposure for XDA.

You can see all the statistics here: http://whatpulse.org/stats/overall/numbers/

Remember it's just an idea, just wanted to hear how my fellow XDA members would feel, and if anyone would actually take part in this fun project, challenge. :good:

As always keep supporting the community with your great custom ROMS, mods, kernels, themes, apps, posts, etc. :highfive:

** I have registered the team XDADevelopers just so no one trolls and takes it. Of course if people are interested, the powers that be will get the team.
[Off-topic] TagEHeuer:
Anyone give me any feedback on why they wouldn't want to take part? Doesn't seem like something people would be interested in, or maybe I'm wrong?
[Off-topic] Jounsa:
I think this is pretty interesting. Maybe I'll take a more in-depth look at it on the weekend.
[Off-topic] TagEHeuer:
Thank you. Not sure how many others are interested. Looks like it won't kick off :p
[Off-topic] Jounsa:
Ha! You never know; most things take time just to get started...Particularly those which are great ;)
[Off-topic] ironman38102:
When I get access to my pc Ill see what this is about

Its going to be LEGEND--wait for it--DARY!-Barney Stinson(How I Met Your Mother)
[Off-topic] Written:
Hey,

I can certainly see the value of this, however, the majority of my keystrokes are done from my work computer.

Problem with that is, I'd have my neck on the chopping board if I circumvented the permissions and installed something such as this.

I would find.it.interesting to see how much I am communicating digitally though, as I do wonder if it has already passed the amount of face to face communication.
[Off-topic] TagEHeuer:
Thank you for looking at it. If we can get more people interested, then maybe we can do something. If you'd both vote on the poll that would be helpful. If you let more people know about this, that we would fantastic also. :good:
[Off-topic] armyboy11b:
Sounds pretty cool man,I never used anything like this tho I'll look at in more in depth when I'm off duty

Thanks.

Nexus5

-Death b4 Dishonor-
[Off-topic] TagEHeuer:
Thanks! If people could vote on the poll that would be great :)
[Off-topic] armyboy11b:
I will when I'm by a PC

Nexus5

-Death b4 Dishonor-
[T-Mobile Samsung Galaxy S 4] Darkphyx:
Morning! There is a way to enable 900 mhz band on a s4 sgh m919? Please help me
[T-Mobile Samsung Galaxy S 4] KRAZYADROIDMASTER:
What uses that band???
[T-Mobile Samsung Galaxy S 4] Darkphyx:
Digitel in Venezuela uses that band for hsdpa
[T-Mobile Samsung Galaxy S 4] KRAZYADROIDMASTER:
There is a mode to go into the bands settings.
[T-Mobile Samsung Galaxy S 4] The Sickness:
Dial *#2263#

My S4 Is Insane

DEVIANT DEVELOPMENT
[T-Mobile Samsung Galaxy S 4] Darkphyx:
It doesn't work :(
[T-Mobile Samsung Galaxy S 4] serio22:
You have to be on touchwiz
[T-Mobile Samsung Galaxy S 4] crisrs:
Similar problem

I have the same problem :(

Here in Costa Rica movistar uses 850 MHz band por hsdpa, if i dial *#2263# the menu works, but when i select wcdma 850 from the menu the cell phone loses completely the signal.

It seems to work only with 2g as it only connects with edge, its very frustrating :(
[T-Mobile Samsung Galaxy S 4] elesbb:
What carrier SIM card do you have installed?
[T-Mobile Samsung Galaxy S 4] crisrs:
I have the movistar sim card installed, i live in Costa Rica.
[T-Mobile Samsung Galaxy S 4] elesbb:
The only thing that I can think of, is that the Radio itself is not allowing the device to set the frequency.
[T-Mobile Samsung Galaxy S 4] brian117:
Shot in the dark here but have you tried changing your APN settings around? Found this on a support forum for Movistar (translated with Chrome so it might not be 100% accurate)

http://comunidad.movistar.es/t5/Software-y-Sistemas-Operativos/Configuraci%C3%B3n-de-APN-en-Android/td-p/1064268
[T-Mobile Samsung Galaxy S 4] crisrs:
Then what radio can i flash?

I have tried flashing the stock MK2 and MDL basebands, but the result is the same. I also saw this thread http://xdaforums.com/showthread.php?t=2381567

But i have not been able to make any of the other phones radios work.

---------- Post added at 04:12 PM ---------- Previous post was at 03:57 PM ----------

Thanks a lot, but i'm sure it's not a settings problem, my girfriend gives tech support for Movistar Costa Rica and she verified everything is well set.

In fact when i first brought the phone to Costa Rica it had android 4.2.2 and 3G worked fine. Problems started when i updated the phone via Odin to android 4.3 (official rom)
[T-Mobile Samsung Galaxy S 4] elesbb:
I would contact T-Mobile and even though they might not wanna help you since you aren't on their plans, its still worth a shot.

I am not sure why 4.3 suddenly killed it. Definately seems like they changed something in the radio. You sure its not the area you are in? Maybe the towers are down?
[T-Mobile Samsung Galaxy S 4] brian117:
Well if you updated your phone to 4.3 via Odin, then flashing the MDL baseband was pointless because there is no way to currently downgrade to MDL if you're on MK2. You are stuck using the MK2 modem AND bootloader. Try redownloading the Android 4.3 T-Mo Update again and flashing it using Odin 3.07 running it as administrator. Then enable the 850 band. After that go into mobile network settings -> access point names -> and tap the menu button and click reset to default. See if that changes anything.
[T-Mobile Samsung Galaxy S 4] crisrs:
Just made a fresh install, still the same, stuck on edge. Can this be a hardware problem?? It worked fine when it had 4.2.2 the thing is that i don't know if it was the STOCK 4.2.2

I have tried using it with other cell phone carriers, same story.

I can't call tmobile, as they are not present in my country.
[T-Mobile Samsung Galaxy S 4] serio22:
Then maybe you should call Samsung instead for further assistance.. It sounds like that band was probably disabled with mk2, hardware issue is unlikely
[T-Mobile Samsung Galaxy S 4] brian117:
Doubt it is a hardware problem. Most likely some sort of restriction.

T-Mobile has a Live Chat option, but only available through certain hours. If it says agents are busy, click the little gray box that says Live Chat along the scrollbar to the right (keep refreshing if you don't see it). It should bring up the box to submit a chat session regardless. Sorry I can't really be of any help. Never really had any experience with this issue.
[T-Mobile Samsung Galaxy S 4] crisrs:
Thanks for the replies, i'm also out of ideas and don't know what to do :( so frustrating...

Guess i'm going to Samsung technical assistance, i know there is representation of the brand over here.
[T-Mobile Samsung Galaxy S 4] x2bc4:
Hello, I'm sorry I know this is a very old post, but where you able to solve the problem?

I have exactly the same need with a stock 4.4.4 SGH-M919 with bootloader/modem NK2. I have tried with latest modem QA1 with same results.

Is there a way to confirm if WCDMA 900 is working with MDL modem? Anybody?

I could try myself to downgrade to check it but maybe there is a risk of hardbrick?

As up today, there is no possible way to downgrade to MDL modem because of knox?
[Asus Transformer TF700] _lace:
Hi!

I tried to install rom2sd on my SD card. Suddenly, after following this guide:

http://xdaforums.com/showpost.php?p=47333729&postcount=31

The internal storage just disappeared. I've tried to format but no luck. The tablet won't even recognize it's internal storage. Is it a hardbrick? I can access TWRP but nothing more (havn't tried fastboot since i don't know if i can get into recovery again after rebooting). I've also tried to install a custom rom from an SD-card but no luck.

anyone with some ideas?

Please help :)
[Asus Transformer TF700] lj50036:
Have you upgraded you bootloader or flashed a recovery lately??
[Asus Transformer TF700] _lace:
I solved the problem! After some hours i managed to install CWM and then TWRP again. Works as a charm now. Though, i won't dare to install ROM2SD again ^^ I'm fine with DATA2SD.
[Galaxy Note II Q&A, Help & Troubleshooting] LucaZPF:
Hello guys,

i know this is not a real bug, but for me is a problem.

as we all know, Gallery App by Samsung allows you to take a note on every photo taken. It's really cool for me and one of the reasons why I bought the Note II.

If i backup my pictures, delete those on device and restore them simply copying DCIM folder...all pictures keeps its note

If i try to restore my pictures from Dropbox folder...i don't have any note.

I noticed that Dropbox automatically renames pictures but only when using automatic upload, with manual upload does not happen.

Have you got any idea on how to keep my notes on Dropbox? thanks!

EDIT: i've tryied to upload manually a picture with a note, delete the original picture in gallery, then i downloaded from dropbox the copy and....keep the note!

I think it's a problem about renaming files or because the automatic upload modify something else that i can't figure out
[Galaxy Note II Q&A, Help & Troubleshooting] LucaZPF:
up
[XDA-developer encyclopedia] raymondu999:
Dopod branded version of the HTC Universal
[Galaxy S III General] ozzyblack:
I flash ML2. But the mk6 seems a little smoother.
[Galaxy S III General] cloudx720:
ML2 is alot better imo
[Galaxy S III General] ozzyblack:
Why is better
[Galaxy S III General] malybru:
Mod Edit

"Best" threads are not allowed on XDA.

Please test these things for yourself.

This is the only way you will get an unbiased opinion,and then, you can decide for yourself if it meets YOUR needs.

Thread Closed

malybru

Forum Moderator
[One (M7) Q&A, Help & Troubleshooting] amitshkuri:
I opened the bootloader via htcdev. then i flashed costume recovery and rooted my device. all worked fine.

After flash the latest ARHD from stock Orange rom the phone stuck in the second htc logo.

i flashed boot.img and then the phone stuck in the first htc logo.

i format data in TWRP! i thought it would help but now all my sd data deleted! include the rom and the nandroid backup!

i tried sideload but adb not read my phone! fastboot work though.

i am really stuck please help me. i cant find RUU for my device (3.63.75.3 - Orange spain) :crying:

i have the htc drivers work and htcsync uninstalled.

** edit **

it work! had to delete the drivers and install the universal naked instead and update the sdk then sideload worked!
[One (M7) Q&A, Help & Troubleshooting] clsA:
lesson one, copy your stock backup to your PC - don't just leave it on your phone

adb only works when your in recovery or booted to OS

Kitkat roms require s-off flash an older version of ARHD like 31.6

sideload the ARHD31 from TWRP and your PC

Set the device into ADB sideload mode. In TWRP you do this by going to Advanced then ADB Sideload.

From the command line, type adb sideload rom.zip

make sure rom.zip is in the same directory as adb/fastboot

ADB Push from Recovery - If Sideload Fails For You

adb push rom.zip /data/media/0/
[Sony Xperia Z Ultra] SWFlyerUK:
Hi folks,

Can anyone please provide me with a cust from an Ultra in Europe that has received 4.3? Would be much appreciated.

Cheers.
[Sony Xperia Z Ultra] LordManhattan:
What's that?
[Sony Xperia Z Ultra] SWFlyerUK:
"ro.semc.version.cust="

It would appear none of the root methods work on 4.2.2 .257 firmware, so makes little difference now.

Will have to wait till the UK receives 4.3 officially.
[Sony Xperia Z Ultra] Lightbird:
you mean CDA? If yes check this out:

http://xdaforums.com/showthread.php?t=2460015
[Galaxy Note 3 Q&A, Help & Troubleshooting] hannarecord:
Hello guys i just root my note 3 N900 week ago and cant find how to install a custom recovery >? i prefer TWRP . but i heard problem about efs etc . please any help :)
[Galaxy Note 3 Q&A, Help & Troubleshooting] radicalisto:
Have a look here - Bigbiff is pretty quick at responding if you happen to get stuck.
[Galaxy Note 3 Q&A, Help & Troubleshooting] jaythenut:
Have a look here http://galaxynote3root.com/category/galaxy-note-3-root/
[Nexus 5 Q&A, Help & Troubleshooting] bitdomo:
Make sure your phone is turned off.

Press and hold volume down key and power until you go to fastboot. At the bootloader version you see HHZ11k.

Now turn your phone off again.

Press and hold both volume key and power until you go to fastboot. Now you see HHZ11d for bootloader version.
[Nexus 5 Q&A, Help & Troubleshooting] SonicAngel:
Think this can be something like dual-bios that Google is trying out?

AKA

User tries to do something, user corrupts the bootloader. User can use a different combo to load a secondary bootloader and save the phone?

If this isn't an option it damn well should be lol.
[Nexus 5 Q&A, Help & Troubleshooting] bitdomo:
I think the same. I don't know any other reason why it has 2 bls
[Nexus 5 Q&A, Help & Troubleshooting] danarama:
There is only one bootloader image in the factory image (Both 16M and 49H). Not sure what this is...

Actually, with vol down only, I get HHZ11d and with both volume up and down, I get HHZ10x (although I never updated my bootloader via OTA). It's almost like you get the newest version and the previous version...
[Nexus 5 Q&A, Help & Troubleshooting] bitdomo:
If you check an ota update youe see these images:

bootloader.aboot.img
bootloader.rpm.img
bootloader.sbl1.img
bootloader.tz.img
bootloader.sdi.img
bootloader.imgdata.img

These images got flashed to the right partition. However there are abootb, rpmb, sbl1b and tzb partitions. I have no idea why there is only one sdi and imgdata partition.

You have HHZ10x because you bought an early device so you had to download ~130mb ota update before you could use your phone. My phone came with 4.4 KRT16M. During ota update or even restoring stock image the partitions of the second bl does not get updated. And you have HHZ11d because you are still on 4.4 or you went to custom rom when 4.4.1 or 4.4.2 were not released yet
[Nexus 5 Q&A, Help & Troubleshooting] danarama:
Interesting...

Yes, I know. As stated, I never updated my bootloader after it's initial update.
[Nexus 5 Q&A, Help & Troubleshooting] samersh72:
yes i guess it has 2 BL, the 4.4 BL is HHZ11d and the 4.4.2 BL is HHZ11K.

if you see partition table of Nexus 5 you notice that it has sbl1 and sbl1b, rpm and rpmb, tz and tzb, aboot and abootb, it means that there is 2 places for bootloader http://xdaforums.com/showthread.php?t=2517503 also notice that there is one sdi and one imgdata images

mine has HHZ11K and HHZ11a :confused:

it seems that when you lock or unlock BL, both are affected.

so is it the same flashing using any BL?
[Nexus 5 Q&A, Help & Troubleshooting] jd1639:
Weird, I have 11k and 11d bootloaders
[Nexus 5 Q&A, Help & Troubleshooting] bitdomo:
I fount this chart about bootloader versions.

As far as I know the lock or unlock state is stored in the misc partition. Nexus BootUnlocker script manipulate the misc partition to lock your bootloader and reset tamper flag without wipe your data.
[Nexus 5 Q&A, Help & Troubleshooting] SonicAngel:
Same here.
[Nexus 5 Q&A, Help & Troubleshooting] samersh72:
according to the chart my N5 build was KQS81M with the HHZ11a BL out of the box, and after the 4.4.2 ota the HHZ11k BL is on.

but the old BL is still on the device and not overwrited since there is double partitions for BL :confused:

---------- Post added at 07:24 PM ---------- Previous post was at 07:20 PM ----------

it is because you had the KRT16M build with the 11d BL before the ota
[Nexus 5 Q&A, Help & Troubleshooting] bitdomo:
There are two bl the first is always got updated, but the second stay as it came out of the factory.
[Nexus 5 Q&A, Help & Troubleshooting] samersh72:
exactly :good:

note that if you use an app or adb command to boot into bootloader it, will take you to the latest one 11k.

i flashed an image using fastboot with 11a BL and with 11K BL: same result :)
[Nexus 5 Q&A, Help & Troubleshooting] bitdomo:
According to aosp the offical way to enter bl is holding all the keys down.

http://source.android.com/source/building-devices.html
[Nexus 5 Q&A, Help & Troubleshooting] SonicAngel:
That makes no sense cause it means Google intended for us to use the outdated bootloader... Why update it if the users aren't meant to... use it?
[Nexus 5 Q&A, Help & Troubleshooting] bitdomo:
It updates, but just the primary bl. Secondary stays the same. Primary is the bootloader which got booted up when you typr adb reboot bootloader or fastboot reboot-bootloader or you select reboot bootloader in fastboot.
[Nexus 5 Q&A, Help & Troubleshooting] SonicAngel:
The one with vol down + power updates, the one with all buttons pressed is the one that doesn't update if I'm not mistaken.

To my understanding (and I switched to Android 3 weeks ago so bear with me), If I turn my phone off and simply press the power button, it goes to the BL that I see if I press vol down + power. This is the one that updates as opposed to holding all 3 keys down which goes to the BL that never updates and is there for backup (IE not the default one).
[Nexus 5 Q&A, Help & Troubleshooting] danarama:
They both must update otherwise my secondary would be the same version as everyone elses. Don't forget I NEVER took an ota update except the one it forced to 16M on first boot. My secondary is older than most of yours.

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[Nexus 5 Q&A, Help & Troubleshooting] SonicAngel:
Possible, but it might be a matter of when the phone left the factory. The secondary might remain at the latest version they had when the phone left the factory. So if you bought yours a month before I bought mine that's a couple versions earlier...
[Nexus 5 Q&A, Help & Troubleshooting] danarama:
Also possible... I ain't taking an ota to prove it ;)

Either way, nothing is proven. Need someone else with an October version (310 serial) to confirm (if they took ota that is)

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[Nexus 5 Q&A, Help & Troubleshooting] jasonst165:
Hey Guys,

I am relatively new to the world of Android being an IOS man until I took the plunge and got this cracking little Nexus.

One thing I have come across is how I seem to be losing RAM over about a period of an hour or so. On a restart my RAM reads about 1.3gb free. After some time it goes to 900mb free. I have APPs like Advanced Task Manager freeing up RAM every hour but thought that someone may have come up with a software tweak or solution that may stem the flow.

I am running a rooted with standard ROM and ElementalX Kernel.

Cheers

Jason
[Nexus 5 Q&A, Help & Troubleshooting] rocksyjj:
using apps that use ram to then try free it up try remove these type of apps and check after a few hours
[Nexus 5 Q&A, Help & Troubleshooting] BuT_TeR:
Thats not a issue , not in android the less free ram you have the better.. if you search google you'll know :) and also dont use any app killer.
[Nexus 5 Q&A, Help & Troubleshooting] qbanlinxx:
There's really no need to use apps to free up ram. We got 2gb of ram
[Nexus 5 Q&A, Help & Troubleshooting] Tom540:
Free ram is wasted ram, don't use any stupid task killers and forget about it :)

//Nexus 5//Nexus 4//HTC WFS//
[Nexus 5 Q&A, Help & Troubleshooting] jasonst165:
So remove those APPs and it runs better with less RAM.

The revers of what Im used to :silly:
[Nexus 5 Q&A, Help & Troubleshooting] TJKV:
You could check RAM usage on iOS? (Genuine question, not a poke at Apple :p)
[Nexus 5 Q&A, Help & Troubleshooting] Bruce Lee:
Always let android handle itself. I have used android since the HTC G1 and android keeps getting better and better managing itself. Don't use apps that help with the android system. They make it harder for the managing to do what it has to do. Let android do it.
[Nexus 5 Q&A, Help & Troubleshooting] danarama:
A memory leak is when a single app (or multiple apps) leak into memory. This would mean if you look in RAM, app1 is using 10MB. Then an hour later app1 is using 40MB, then an hour later, app1 is using 100MB. Its only a leak if the particular app is grabbing more memory and never releasing it.

What is described here is just RAM being used, which as already covered by everyone else, is a good thing :)

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