yashsingh1/xdaforums huggingface dataset:
[T-Mobile myTouch 4G Slide] MT4GS:
I'm not a big fan of external batt packs. I knew from begining it's not for me. Bought 1 once, and I always forgot to carry it, or simply didn't have pockets for it. Whenever I needed it I didn't have it with me... Nothing beats good slim battery (or big fat extended battery) that's right there in the phone itself - you'll never forget to carry it ;)

But when I go trekking I do carry a hand-cranked LED flashlight.

It is equipped with built-in rechargeable 4x Ni-MH AA batteries at 2800mAh each and also has DC 5V out (for anything taking charge of off USB ports).

This stupid flashlight is the most versatile "external charger" I can think of, IMO :)
[T-Mobile myTouch 4G Slide] wjcarpenter:
I had The Professor make me one out of coconuts. Gilligan recharges it by pedaling a bamboo bicycle.

:rolleyes:
[T-Mobile myTouch 4G Slide] MT4GS:
That would be like slavery! :eek: They upgraded to solar panels already, Gilligan only has to dust them off every day :p
[T-Mobile myTouch 4G Slide] SOEBOMB:
Do these portables work as gud as they say?
[T-Mobile Samsung Galaxy S II SGH-T989] wondercoolguy:
http://xdaforums.com/showthread.php?t=1236779

I saw a user have this in his signature for SGS2 so I google it and found the thread but there are alot of downloads. Please can some one help me/us know which one to download and flash...?
[T-Mobile Samsung Galaxy S II SGH-T989] billydroid:
There is already a thread and download link in the dev section.
[T-Mobile Samsung Galaxy S II SGH-T989] wondercoolguy:
sorry, thanks!
[Acer Iconia A500] mr.bryce:
Hello,

i ve been searching for a way to extend the autonomy on the a501.

do you think i can use a cheap 12V lithium battery to charge it or take over when the internal battery is depleted ?

i m not very knowledgeable in electronics, i wouldnt want to damage the internal battery.

there seem to be very few commercial products that would fit this tablet and i m not really interested. i dont have 50$ for a +2h battery life --;

i was thinking of buying a 12V 5000mAh something battery from china and solder the appropriate DC connector on it, but im wondering if there are issues like, the Current needs to be stable at 1,5A or i might reduce the internal battery durability, things like that.

can anyone answer that ?
[Acer Iconia A500] powercat_:
It's more complicated than that. The power supply probably has a circuit to regulate the flow of energy to the tablet, perhaps the tablet itself also has a circuit that works together, I don't know.

Short answer: buy a second power adapter :P
[Acer Iconia A500] GullyFoyle:
There are backup battery/chargers. Scosche goBAT for example.

Just Google around to find the best fit for you.
[Acer Iconia A500] powercat_:
How would that work? Does the goBAT include a charging tip compatible with the A500?
[Acer Iconia A500] mr.bryce:
Hello,

thanks for dropping by :)

its not helping really this is bs

power cat you say "probably" regulates the current. yes that is what i wrote that is what i hoped someone would clear up for me. i dont see how buying another wall charger is going to help me extend the tablet autonomy i would just as well carry the original one around.

gullyfoyle same sideways reading of the OP i would not pay 80$ for a marketed battery/charger.

i hope there are still people out there who can give an educated answer :/

this guy for example http://www.youtube.com/watch?v=LqxhEkDGkbg he says he learned it the hard way (bricked his phone?) because he put 4x(1.5V?) batteries to charge his iphone without the resistors (to get the voltage from 6V down to 5V?)

so there again, can there be issues with the discharge current rate or is it something about lithium batteries behaving differently from alkaline ones ?

i think i ll go ahead and try anyway. worst case scenario the battery will just sit there not putting out anything.
[Acer Iconia A500] GullyFoyle:
Why wouldn't you pay $80 for a backup battery charger. It was just an example. I'm sure you can find one cheaper after Black Friday, or even with a bit of Googlefu.

We aren't talking about normal chargers but portable charge devices.

http://www.scosche.com/consumer-tech/product/2073

Remember this is JUST AN EXAMPLE. The idea is to show these devices exist and are available for purchase.

http://www.engadget.com/2011/02/23/scosches-gobat-ii-portable-battery-pack-handles-two-usb-devices/

See, others deem it "BRAIN MELTING".

And the cost of that type of thrill is reasonable, for the job it does.

But I can understand how someone would encourage another person to experiment with the guts of electronics they don't fully understand. Screw it up and you can always buy a new one.

Then again, you could buy three or four Gobats and save all the fuss and bother.
[Acer Iconia A500] powercat_:
You will break your tablet.

The charger contains a complex integrated circuit. Sticking on a few resistors isn't gonna do ****.

Look at this for example, a simple wind generator has a complex charging circuit to regulare all the power:

http://www.instructables.com/id/How...nd-turbine/step8/Build-the-charge-controller/

Just google "how to make a charge controller" it's really not as simple as you think.

Quote from the site:

The general principal behind the controller is that it monitors the voltage of the battery(s) in your system and either sends power from the turbine into the batteries to recharge them, or dumps the power from the turbine into a secondary load if the batteries are fully charged (to prevent over-charging and destroying the batteries).
[Acer Iconia A500] mr.bryce:
ok thanks ^^

now i understand that part

you are saying the overcharge controller (and other safety features) are all in the wall charger and are not integrated in the tablet.

so if i really really wanted to try i could plug any battery between 12 and 24V to this little guy couldnt i ?

http://www.ebay.ca/itm/220826123824#ht_3149wt_1163
[Acer Iconia A500] Daemos:
As far as I know...as long as the voltage is correct (eg 12 volts) and the power adapter can produce the required amperage (1.5A) then the tablet will only take the current it can use.

So even if the power adapter is capable of producing 10A say, it doesn't mean it's forcing the 10A onto whatever is connected to it. If you use 1.5A (and if there was a way to connect multiple devices to it) you would still have 8.5A of current you could still take.

Oh the charge regulator would not be in the power adapter, that would be a very stupid design. It would be in the tablet it self to regulate how much charge it requires. I don't know of any power adapter that takes feedback from what it's charging to regulate the current.

It's the same with laptops, that's why you can buy universal laptop chargers when the one you have breaks, you just need to make sure it can supply enough amperage to power your device.

The power adapter is just a simple device that converts 110-240v 50/60hz voltage to 12v and upto whatever amperage it is designed for.

Power plugs in the house are designed at 110-240v to a maximum of 2400W (so ~20a for 110v and 10a for 240v) do you think whatever you plug into it uses up 2400W of electricity at once? No, it just takes what it is required (amperage), that's why you can plug a power strip with like 2-10 additional plugs without any problems unless if try to take more than 2400W in total.

Basic high school physics should of taught people this.
[Acer Iconia A500] mr.bryce:
first sensible answer i get thank you daemos i m just not gonna take any chances considering the lithium technology and the fact they could use a "stupid design" for shorter gadget lifespan. if anyone has ever modded a car charger i d love to read about it.
[Acer Iconia A500] Daemos:
Lithium ion batteries must be charged at a very specific voltage. So all charging regulation mechanisms would need to be inside the tablet.

I'm pretty sure the ones inside the tablet are definately below 12V so anyone thinking that the AC adapter has any fancy mechanisms to detect feedback, and regulate charge and control the voltage given to the Li-ion cells is incorrect.
[Acer Iconia A500] ronkoni:
Is it safe to use one of THESE to charge or run the tablet?

They also have a 6800mAh ver.
[Acer Iconia A500] erica_renee:
WOW YOU MEN Complicate everything

SIMPLE EASY .. Look at the output voltage of the the power brick for the iconia.. the part that you plug into the wall..

got something that OUTPUTS 12V AT 1.5 AMPS and you are done.. the Li Batteries as in all LI BATTERIES HAVE THERE OWN charging regulators in them.

The reason for this is because if a Battery is drained to a low state it will GET HOT AND OVERHEAT.. NI-CD Batteries can take and handle this heat.. Li batteries become a mini bomb at these temps.. So the are self regulating.. This can be proven by getting a cordless drill hold the shaft from running.. the drill will heat up the battery the device will STOP FUNCTIONING.. Remove the battery and put it back in . it will work again..

Now with that said.. most Li devices say make sure you have 20% or more battery life before flashing and so on.. This is because the DEVICE WILL NOT RUN On the power port. the port only connects to the battery. and in some cases the display lighting.. My cell is this way. if i run the battery until its dead or using gps on it. it will drain the battery faster then it can charge . causing it to not work until you charge it for 5 minutes or so.. this would assume that using a external battery to charge it .. the external batteries themselves would need to be more then 12 volts and atleast double the amps.. then regulated to the 12v 1.5 amps . think of this like pooring water thru a funnel.. to maintain the 12v 1.5 amps. You can test my theory by taking the battery out of your cell phone and trying to run it just on the power adaptor only.. I KNOW MINE WILL NOT RUN.. however if it has older battery technology it will..
[HTC EVO 3D] LostRib:
I plan to go exchange my phone for a crooked screen since I have TEP with sprint. Is their a way to back up my apps and settings without root?
[Eee Pad Transformer Q&A, Help & Troubleshooting] brlowe:
My TF is rooted. I want to complete wipe everything and start over with nothing on the tablet. I have done a factory reset, I have gone into recovery and selected all the format options to the point it would not boot. Then flashed the revolver rom and after it starts up all my folders are still there and the internal memory is half full.

So what is the correct way to complete wipe the system?

Thank you
[Eee Pad Transformer Q&A, Help & Troubleshooting] Spidey01:
Being lazy I would have just tested if rm -rf /sdcard/* /sdcard/.* worked as root...lol.
[Eee Pad Transformer Q&A, Help & Troubleshooting] ifly4vamerica:
Look in revolution hd rom thread and you will find a superwipe that will do it. Superwipe lite DOES not wipe the sd but the superwipe full doea. Or you can just use the format sd card option in recovery I think it is under mounts/format, I'm using roaches modded cwm.

3VO Sent
[Eee Pad Transformer Q&A, Help & Troubleshooting] brlowe:
I did try the format SD card in Recovery and it did not do it for some reason.

I ended up just deleteing everything using file manager and then rebooting into recovery and reinstalling the rom. This worked great.

Now to install the apps I find I use and stop installing everything I find that looks good.

Thanks
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] glococo:
Well, sorry for that question, but I was unable to find out.

¿ Unlock bootloader == SIM UNLOCK ?

If I follow this guide will SIM UNLOCK it:

http://wiki.cyanogenmod.com/wiki/Sony_Ericsson_Xperia_Mini_Pro:_Full_Update_Guide

I used "DooMLoRD_v1_ROOT-zergRush-busybox-su" to root my sk17i very easy and fast, but dont know how to SIMUNLOCK it.

Thanks for suggestions,
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] BlackArty:
No, it can't.

But unlocking via test point can unlock sim.

For example, try to use Omnius.
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] glococo:
So you mean, Can I network unlock with SETool ?

Following this guide:

http://xdaforums.com/showpost.php?p=18013064&postcount=44

http://support.setool.net/showthread.php?29207-sk17-testpoint-and-request-for-help

?
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] dejanp1:
Yes, BUT must buy setool box (~ 120 €) and setool logs (30 logs minimum = ~ 70 €)...
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] BlackArty:
You can unlock bootloader with this without losing anything.

But Omnius for SE writes that you can do simunlock, if you unlock bootloader through test point.

Anyway, Let's try :)

---------- Post added at 08:45 PM ---------- Previous post was at 08:43 PM ----------

No, it is another program. And it's working as freeware and with usb-cable.
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] dejanp1:
If you do not know something, then do not write anything...

setool software dont work without dongle or box... and unlock price for sk17,st15,st18... is 5 logs but must buy 30 or more (30 is minimum)

read here

www.setool.net

or here

http://support.setool.net/showthrea...-SETOOL-AND-SETOOL-CREDITS.-LIST-OF-RESELLERS.

you cant unlock new SE phones for free

omnius also not free

http://omnius-server.com/buy_client

only bootloader unlock is free (for example with s1tool) and bootloader unlock is just a necessary step in the sim unlock procedure
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] BlackArty:
I only talked about the fact that the bootloader unlock for free, and not about free simunlock.

I used s1tool and omnius to unlock and there had been written about the simunlock bootloader during.
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] dejanp1:
you said for SETool : "No, it is another program. And it's working as freeware and with usb-cable."

setool is not free soft (smart card protected)... setool need setool box or setool dongle...

this is setool box, setool dongle and setool smart card(attached picture)

P.S. read from the first post
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] BlackArty:
I know what is setool :)

I mean s1tool in this sentences:

Sorry for syntactic errors.
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] dejanp1:
Ok misunderstanding, sorry :)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jake:
(REQ) Overclockable kernel, stable + fast for use with "stock gingerbread" 2.3 A&TT

:) +1
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jake:
+1 boot anim support :)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jivy26:
Really do not think that you needed to start threads about this. If you're patient I'm sure devs will get one released.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jake:
No worries mate.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mbze430:
I am more interesting in a kernel with CIFS and NFS support
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] nrm5110:
Hey is anyone still working on this???

How's this for bringing the dead back I can noob it up too lmfao
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] icenight89:
u got game son lol
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] ian1:
Why not faux kernel?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] m4570d0n:
1) get faux kernel

http://xdaforums.com/showthread.php?t=1437563

2) quit this stock nonsense and get Sky ICS (2.3.5)

http://xdaforums.com/showthread.php?t=1377087

3) what you should really do is quit this gingerbread nonsense and get ICS.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] nrm5110:
Wow you guys thought I was serious lmfao
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] icenight89:
I didn't actually think you'd catch prey in ur trap...lmao
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
You've been had
[Galaxy Note GT-N7000 General] metus666:
Something I've never seen before on any Android device is that the Android OS uses up more battery than the display does...

Can anyone deduct something from these screenshots?

View attachment 776289

View attachment 776290

View attachment 776291
[Galaxy Note GT-N7000 General] RiverSource:
Regarding Android OS you can find a lot of stuff in the i9100 and i9000 section.

But be careful, you have marked the Android System entry, not the Android OS section. Both are totally different.
[Galaxy Note GT-N7000 General] brotbuexe:
Looks suspicious.

Why system with 2 e?

On my note it shows "Android System". Or is it a group and the app developer got it wrong?

You should try betterbatterystats (somewhere here in xda). It shows you the wakelocks for the system processes. Not only for "android system" group.

I had this last night with a usbstorageunmountter (don't know why 2 t) :-)
[Galaxy Note GT-N7000 General] brotbuexe:
Played a little with USB hostmode. Looks like something got stuck.
[Vibrant Q&A, Help & Troubleshooting] rchrdcrg:
Ok, so somehow in my infinite wisdom I managed to get my lockscreen set to where there's no way to unlock it. I do, however, have WebKey running on it, so I do have access to a terminal. Is there ANY way to fix this without a full wipe? For the record, I'm on CM 7.1.0.1. I've been banging my head against Google searches for two days now and haven't found a solution, and I was hoping WebKey might allow me another option... can't there just be a shell command to unlock the screen? Nah, that'd be too easy, lol...
[HTC Vivid, Raider, Velocity] parmar.saab:
Given that the Vivid has the following bands (according to Phonescoop):

GSM 850 / 900 / 1800 / 1900

LTE 700 / 1700

WCDMA 850 / 1900 / 2100

-Can anyone confirm whether this phone, when﻿ unlocked, will work with T-Mobile's 3G network or not; since it has the AWS (1700) band?
[HTC Vivid, Raider, Velocity] galfert:
It wont work. The HTC Vivid only has WCDMA 850 / 1900 / 2100 that is what is used for 3G data speeds. T-Mobile requires AWS bands which is 1700 and 2100. On T-Mobile one of those bands is used for Uploading and the other is used for Downloading....you need both in order to be AWS compliant. The fact that it has 2100 does nothing for T-Mobile use. 2100 is used in Europe.

The 1700 band listed is only for LTE. And I think Phonescoop actually missed part of the LTE specifications because I read elsewhere that the HTC Vivid for LTE is 700 and AWS. Meaning that it uses the AWS bands 1700/2100 for LTE only. And you can't use this for T-Mobile AWS 3G. This makes sense if the T-Mobile purchase goes through because AT&T intends to use T-Mobiles current 3G bands which are only AWS 1700/2100 for LTE.
[HTC Vivid, Raider, Velocity] bjg222:
Perhaps somebody else can confirm this, but my speculation is no. The AWS band in the Vivid is specifically for LTE, I believe, so it wouldn't pick up HSPA on it. It has this mainly so that it's merger proof, I think. AT&T would like to use T-Mobile's AWS band for expanded LTE if the merger goes through.
[HTC Vivid, Raider, Velocity] engsrini:
How about T-mobile HSPA+ network will the HTC vivid works?

Can somebody please confirm whether this phone is compatible with T-Mobile 4g Network. I have T-Mobile grandfathered $5 unlimited data. it would be awesome if this phone works! :) (since none of T-mobile branded phones work with grandfathered data) :( )
[HTC Vivid, Raider, Velocity] Pirateghost:
TMobile 3G/4G share the same frequencies....so NO...it wont work
[HTC Vivid, Raider, Velocity] galfert:
Yes true, I missed that part of the explanation, thanks.

T-Mobile 3G = WCDMA/UMTS/HSDPA = AWS Band 1700/2100 (needs both frequencies - one uploads, the other downloads)

T-Mobile 4G = HSPA+ = same requirements as 3G
[HTC Vivid, Raider, Velocity] solidus636:
sorry to resurrect this thread, but hasn't t-mobile started putting out their 1900MHZ spectrum 3G? I have heard and seen many iPhones getting 3g with T-Mobile. This VIVID has the same bands as other phones that would get 3g, since it has a 1900 HSDPA band. Has anyone reported sightings of getting 3g on an HTC Vivid yet?
[HTC Vivid, Raider, Velocity] homeslice976:
I saw some OneXL users were reporting 3g speeds on TMobile as well
[HTC Vivid, Raider, Velocity] Wolf61477:
HSDPA working here on a HTC Vivid on T-Mobile

http://xdaforums.com/showpost.php?p=29641878&postcount=12
[HTC Vivid, Raider, Velocity] volcandroid:
3G & HSDPA working

just did multiple speed tests, and i got a range from 7mbps - 10.5 mbps download and 1.5 - 4.5 upload on my vivid that was a paper weight for a while.:laugh:

nice work T-mobile:good:
[HTC Vivid, Raider, Velocity] XxSHaDoWxSLaYeRxX:
what about tmobile LTE. sorry for reviving, just curious
[HTC Vivid, Raider, Velocity] mg2195:
Pretty are still a no go..I believe only there 3g networks were changed..could he wrong though...
[HTC Vivid, Raider, Velocity] joellecool:
In case you still need help, here is what I suggest:

For the unlock, use unlockusa.com to get your code. They're the fastest and most reliable on the market.

For the internet, use the following settings for your APN (Credits: http://htcsource.com/2012/08/how-to-sim-unlock-the-htc-vivid-and-add-t-mobiles-access-point/) :

Name: T-Mobile.com

APN: fast.t-mobile.com

Proxy: Not Set

Port: Not Set

Username: Not Set

Password: Not Set

Server: wap.voicestream.com

MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc

MMS proxy: 261.155.165.50

MMS port: Not Set

MMS protocol: WAP 2.0

MCC:310

MNC: 260

Authentication type; Not Set

APN type: default

APN enable/disable: Checked

Bearer:Unspecified

Enjoy your cool phone !

I hope that helps. It worked for me, as I was having the same issue.
[HTC Vivid, Raider, Velocity] projectisaac:
Just curious (reviving the thread), I noticed that T-mobile's GSM-based network has 1700MHz AWS listed for their 4G speeds, and the radio interface is LTE. The Vivid has 700 and 1700/2100 MHz listed for the LTE. Both are listed to work on band 4. Would this not theoretically allow the vivid to attain 4G speeds on T-mobile?

Also, T-mobile has 850 [roaming], 1700, and 1900 MHz on the UMTS interface for 3G generation. The vivid can connect to 850[roaming!] and 1900 MHz, although it does not specify the band. So maybe 3G works with T-mobile?

And we all know the 2G spectrum works too, but just for consistency:

T-mobile 2G: 850MHz (band 5) GSM [roaming], 1900MHz (band 2) GSM

Vivid: 850MHz, 900MHz, 1800MHz, 1900MHz GSM

I would love either verification or reasons why this doesn't quite work!
[HTC Vivid, Raider, Velocity] Wdenton:
Hello everyone and hello there.

Have a HTC VIVID on Albinoman's CM11 (1/12 build) using Simple Mobile (a MVNO of T-Mobile).

Using the APN already on the SIM/ROM I DO NOT get the 4G LTE.

Fortunately I get 4G, H, 3G, and E for the phone.

So LTE is still a no-go with T-Mobile with the HTC Vivid unfortunately (for now).
[HTC Vivid, Raider, Velocity] rignfool:
I don't think that will work for a long time... I don't think at&t uses the same LTE... Uhhh... Channel?
[HTC Vivid, Raider, Velocity] Wdenton:
Hopefully it doesn't take long is what I meant, was half asleep when I posted the reply.