yashsingh1/xdaforums huggingface dataset:
[Hardware Hacking General] HeliumX10:
Sorry didnt read all of the posts, butfor this you can use simple step-up converter.

I have solar charger also with li-ion battery which can provide max 4,22 V and I need 5 Volts.

I bought this module on ebay:

http://www.ebay.com/itm/DC-DC-Conve...175?pt=LH_DefaultDomain_0&hash=item4165891a1f

Works great, provides nice clean 5V output, max is about 2 Amps, even they are telling more... Could also post my complete solution photo if you want ;)
[Hardware Hacking General] aaricchavez:
What's the difference between the built in battery vs an outside battery that would make it add up?

Adding another power source would basically end up being the same as getting a powered hub.

So what Helium, the poster below you, said should work with the 3.3v that the KF already puts out?

I would like to see the photo, if you don't mind.

This one should work as well, correct? http://www.ebay.com/itm/DC-DC-3V-to...932?pt=LH_DefaultDomain_0&hash=item3a722f7ccc
[Hardware Hacking General] HeliumX10:
Many many .. :)

Power outputs form every mobile devices are not designed to provide big current. It is many times about 50-100 mA, which is sufficient for flash sticks,keyboards or mouses but not for e .g. hard drives.

If you connect step-up converter to for example 3,3V and 100mA, on output you will get 5V 50mA - this is really not sufficien for even mouse...

But if you use battery insted, it can provide huge current - normally 2000mA max. So if you connect battery to converter you will get 3,7V 2000mA and on output 5V 1400mA. Which could be usable even for low power 2,5" hard driver. Also battery has bigger voltage, so it means, that efficiency will rise up a little.

Yes, look up in this post :)

Here there are - as you can see. I am charging my phone from standart li-ion battery from GPS with standart 5V USB ;)

Yes, could. But I recommend that I posted before - it has bigger mosfet package, which allows about 0,5W thermal dissipation. On your module are SMD transistors, which can dissipate only 0,1W and are very sensitive to aḿbient temperature. I dont trust SMD components in power solutions.
[Hardware Hacking General] Renate:
I'd actually recommend keeping the boost regulator on the smaller side.

Besides the space consideration, it would be nice if there were some current limiting.

I just measured the current draw on a 4GB microSD in a IOGear USB adapter and it was 45 mA.

The wireless mouse dongle that I measured was 15 mA.

I don't have any wired mice to measure, but I'd guess that they would all be around that.
[Hardware Hacking General] HeliumX10:
Sure, but you wrote, that his device provides 35 mA max, so it wont be enought for most flash drives. Besides that - you measured in low power (3,3V) or high power (5V) USB mode? Because I expect 5V mode so it means than in 3,3V will be much more miliamps...

Anyway, with boost module it will enable him to use almost everything which has drivers. Not only tiny consumption devices, it will be full equipped active host hub also could be connected with switch as emergency charger...
[Hardware Hacking General] Renate:
I'm just saying that if you have your heart set on installing a DC converter, I think that maybe 100 mA is a better choice than 2 Amps.
[Hardware Hacking General] aaricchavez:
I'm really only going to be using it for a microsd adapter and maybe a mini bluetooth dongle, so I have to agree with Renate that I really don't need 2A.

Thanks for the pics. I was thinking about building something similar(a solar MintyBoost) but I just ended up buying a backup charger.

If at all possible i'd like to use a smaller battery cause I don't need a backup charger since I already have one.

Ok, I have two plans, one of which will probably work based on what you guys have told me. A few questions first though:

*For 100mA how small of a battery could I use? Could I use, say, the6th gen iPod Nano battery?(3.7v 120mAh) If that's too small, how big? I have several extra Li-Ion & Li-Pol batteries lying around from other iPod Nanos, MP3s and such.

*If the 6th gen iPod Nano battery will work, how long do you think that would power the microsd adapter? Preferably i'd like to use a battery that could power it for 10 hrs, but if I can get around 5 hrs i'll be happy.

*What other parts would I need to charge the battery?

Ok, plan A would be to put the battery inside the KF if the 6th gen iPod Nano battery, or something of a similar size would work. And i'd also make an extra slot in the housing for the charge port to plug it in to charge.

Plan B would be if I have to use a larger battery, i'd build it into my case on the outside.

Edit:

According to Windows the adapters I have are pulling 248mA, you guys know how accurate the measurement is?

I also wanted to add that I could probably fit two of those 6th gen iPod Nano batteries in, depending.
[Hardware Hacking General] Renate:
I think that the numbers that Window is showing are fishy.

You don't want something that is drawing a quarter amp

This project is getting out of hand.

The DC converter was to make 5V if you couldn't beat it into working on whatever the KF puts out by itself.

The intent was to feed it directly off the KF battery.

Having two unrelated batteries would be a real headache.

You'd have to add a charging circuit.

Then would you add more hardware and software so you could monitor the charge?

Two power adapters and always getting confused which battery needs to be charged?

Have you gotten this to work externally at all yet?

Is it really worth all this effort just to get a bit of extra storage?

If this were my project I'd be taking some measurements and doing some tests first.

I'd see if the SD card adapter could work on 3.3 (or whatever the KF puts out).

I'd try a few different adapters.

I'd check what voltage they pass on to the SD card.

I'd try shorting out the regulator in the SD card adapter.

If none of this worked, I'd put the smallest possible DC converter in.
[Hardware Hacking General] HeliumX10:
Totally agee :D

No, he dont have to do it - most of batteries has the necessary power management circuit which protects it form - under and over-charge and limits the maximal current and even checks temperature. It has builtin power MOSFET which disconnect battery when something unexpected happens.

In my project I also used the li-ion battery without any extra circuits - it has it built in.

Yes exists some without it, but he could post a image of battery which want to use and I could check it.

If the battery will have this circuit, he could simply (as I did in my project) solder to the battery directly an usb cable and cahrge the battery form PC or any USB charger.

Also agree - I will buy 32GB fast sdcard if I were you :)

USB host is a great feature, but this it doesnt make a lot of sense....
[Hardware Hacking General] E:V:A:
Hitting the "THANKS" button work for you too! In fact, given the amount of help you've gotten here, you should hit it repeatedly... Don't be greedy.

(And I'm not talking about myself, since I didn't contribute.)
[Hardware Hacking General] aaricchavez:
True, true. I was going to a few posts back, but I forgot :/

Have a free one anyways for the reminder :D

Apparently I only have 8 thanks a day, i'll finish tomorrow.
[Hardware Hacking General] aaricchavez:
Double post to act as a bump.

I have some good news. Since Most of the adapters I ordered were from China shipping was slow. I just got another one yesterday and my Kindle recognized it and StickMount mounted it, but I couldn't actually access the sdcard at all.

There's something different about this particular adapter, instead of being read as an adapter/reader it's seen as a flash drive.(In Windows) So maybe that's the reason that the others aren't being recognized; the kernel might not have the proper modules for adapters, although it could still be a power issue too.
[Hardware Hacking General] Renate:
Well if you know what value the resistor was we can get an approximate value of the current.

(5.0V - 3.36V) / R = the current.
[Hardware Hacking General] HeliumX10:
It seems to have a control circuit - but if you want to be sure. Remove carefully the yellow plastic foil and carefully bend the pcb with wires. There must be two chips and few passive components on the bottom side. Take a photo if you want to check it by me.

Also you can use similar control circuit, but this is for two cells in serial connection, you need for parallel connection i.e. for one cell - 1S1P.

I have also an idea - you could use this battery connected to sdcard - try it. But pay attention, you cant connect the battery also on KF.

Battery must be connected only to sdcard adapter. In other case,you may damage your phone!

SO Vcc and GND on KF unconnected. On adapter side Vcc and GND connected to battery.

Anyway dude, thanks buttons gives us still the power :D
[Hardware Hacking General] aaricchavez:
I honestly don't remember, I just grabbed one out of a big pile of them, I should have though. I'll try some again and give you the results.

Here's the other side of the board, I don't actually have any on hand, I just thought they were a good size. http://www.is-pc-parts.com/images//iPod Nano Repair Parts/13197346140.jpg

I'll try with one of the other batteries I have and on the one that was recognized by my Kindle, I think that the reason I couldn't access the sdcard was because there was enough power there for the adapter but not the sdcard itself.

Well, i'm obviously no expert in this area(I usually just wing my projects), but this has helped and is helping me learn some.
[Hardware Hacking General] HeliumX10:
Yes,here I see the control circuit. So you could charge and discharge with 5V power without any extra circuits.

It should work on all li-ion or li-pol batteries. Note that if battery has been discharged deeply under 0% - the internal circuit disconnect the battery.

To simplify it - fully charged battery has 4,22V and almost depleted 3,72V and when batt is still discharging voltage decreases until 2,7V when circuit disconnects it for safety. When battery is totally discharged (under 2,7V), you cant measure any voltage on its output, until you will charge it again ;)
[T-Mobile LG G2x] yoimbeast:
Is there anyway I have have my phone on 3g instead of 4g? No matter which ROM i'm running if it's 4g my battery in gone within hours, when i'm on 3g my battery can last up to a whole 18 hour day. Is there any way I can change my 4g to 3g with a toggle app or something ?
[T-Mobile LG G2x] SefEXE:
Well... and I could be wrong, but...

I think we only have 2G and 4G(HSPA+).
[T-Mobile LG G2x] Spitfire:
I use an app called Network Switches by Miguel Rodriguez. It's just a shortcut that goes to the menu where you can toggle 2g/4g (there's no 3g). Afaik there is no widget to toggle between the two directly.
[T-Mobile LG G2x] mt3g:
the main reason I like AOKP/RomControl you can have it setup within the built in settings so when the phone goes to sleep and after five minutes it'll go to 2g to save battery, while I'm on CM7 I just setup a toggle in the status bar for mobile data and turn it off if I know I wont be needing my phone much. There is no alternative like Sprint has for there 3g and wimax, tmobile is 4g 2g G and no data.
[Droid 2 Global General] blkatie:
Just like a title, iwas wonder if i could flash another rom like MIUI if i've already have an D2G .629 stock rom that i've known being stuck with new bootloader.(can't sbf)

Just wonder if any chance??
[Droid 2 Global General] sd_shadow:
you just need to be rooted

and there is a .629 sbf and a way to root

as to which roms work, just ask in the rom's thread, anyone has tried it with .629
[Droid 2 Global General] prbassplayer:
Cleaning up development section. Moved to General.

Cheers
[Xperia Arc General] mansy_gupta:
Hello everyone. Im trying to make a fxp based ROM for xperia pro. But im unable to include device settings( to change keyboard settings) in the ROM. Can anyone help me to include it.

ROM Based on fxp cm9
[Xperia Arc General] kaaniz:
Lol.. Remind me not to use your Rom.

Just kidding. Hope you get it sorted out soon and will share your handywork with us!
[Galaxy S II Q&A, Help & Troubleshooting] ancilary:
hi

i m new to s2 but i was using nexus s before

now i have few questions please clear my doubts

1.for now my phone is not rooded if i install a custom kernel with odin will the phone be rooted if that rom has root?

2.for now my phone is not rooded if i install a custom rom with odin will the phone be rooted if that rom has root?

thank you
[Galaxy S II Q&A, Help & Troubleshooting] Wezi:
Flash a ChainFire kernel using odin (follow the links in my signature). Try and keep it close to your current rom / kernel number. Its all in the instructions on their page.

Then flash your new roms either through recovery (follow links in my signature) or using odin.
[Galaxy S II Q&A, Help & Troubleshooting] FotoMichi:
when you flash a costum ics kernel for cm9 like fluxi, you have root!
[Galaxy S II Q&A, Help & Troubleshooting] ancilary:
for now my rom is official s2 rom for 2.3.6

and in cf-root thread the kernel required for my version is untested

what to do?

can i just flash rooted custom kernel via odin?

and does odin require kies to be installed?
[Galaxy S II Q&A, Help & Troubleshooting] ancilary:
thank you

i rooted using chroot and its working perfectly fine and used samsung usb drivers :)

can u suggest me some best avalialbe roms?
[Galaxy S II Q&A, Help & Troubleshooting] ZACQ8:
read this rule : http://xdaforums.com/showthread.php?t=1612881

and pick the one best for you from here : http://xdaforums.com/forumdisplay.php?f=1058
[Galaxy S II Q&A, Help & Troubleshooting] rocky23:
tht were the best suggetions u got frm aboue frnds.....well there is no best rom,kernel we all are flashaholic(atleast me lol) but if u pm me wat r ur likes i can suggest some, but remember all roms of devs r best an its owr personnel choice tht we make on owr fones :):):)
[Galaxy S I9000 General] slaphead20:
Ouch, the eye of the great one is upon you :D

Sent with solstice greetings
[Galaxy S I9000 General] slaphead20:
;)

Sent with solstice greetings
[Galaxy S I9000 General] donematrix:
That's great!
[Galaxy S I9000 General] slaphead20:
;)

Sent from the gutter, gazing at the stars
[Galaxy S I9000 General] slaphead20:
Just some constructive feedback....on the restore froyo section, bullet point lists would make it far easier to read and extract information from :)

Sent from the gutter, gazing at the stars
[Galaxy S I9000 General] donematrix:
Do you mean change the ordered list to pullet point list? Or that some information in the ordered list can be broken down more into smaller groups of information?
[Galaxy S I9000 General] slaphead20:
The flashing sequence in particular, it makes it far easier to keep track of where you are in the process, noob friendly!:D a another suggestion is screen shots of the Odin setup, I did this for a rescue and recovery kit I slung together...for my own use lol but I just share it by DB if someone needs it

Sent from the gutter, gazing at the stars
[Galaxy S I9000 General] slaphead20:
Much better edited ;) removing mine

Sent from the gutter, gazing at the stars
[Galaxy S I9000 General] donematrix:
Thank you for your advice.
[Galaxy S I9000 General] valentinerh:
...............
[Galaxy S I9000 General] aliikhlaq2006:
Home button

After the rom flashing my home key is not working any more can u plz help
[Galaxy S I9000 General] donematrix:
Maybe some of the files are not selected (Step 9 of Restore Froyo 2.2.1 back to your Samsung Galaxy S I9000).
[Galaxy S I9000 General] gangstaboy13:
Is this the original software samsung gives by your phone so you can update to gignerbread via kies? Or Is this from samfirmware?
[Galaxy S I9000 General] donematrix:
I am sorry, but I do not know what you are referring to.
[Galaxy S I9000 General] MIKEMON:
Yes, it is a samsung fw. / Froyo / ..
[Galaxy S I9000 General] MIKEMON:
And why Froyo? GB is completely different?
[Galaxy S I9000 General] Taxiozaurus:
Froyo wasn't first on SGS, it was Eclair. But still thanks for the guide.
[Galaxy S I9000 General] ali.alsharif:
Thanks

I don't know how to thank u. Ur great !
[Galaxy S I9000 General] donematrix:
You are welcome. You can just click on the thanks meter.
[Galaxy S I9000 General] shellahn:
It doesn't work

Hi, i tried to root my samsung galaxy s1 but it seemed something went wrong. After i tried this my phone still didn't work and still gives the same screen : ' A phone and a PC with a dotline between it. There is also a yellow exclamation mark.' So what to do? Is it totally bricked or is there still a way to get this phone working?
[Galaxy S I9000 General] xsenman:
NO, all it needs is the correct ROM and Kernel to be flashed again in Odin3, your phone is still in download mode , just connect to Odin to flash

Check Here to chose your forum/Guide by Version of your phone or you will have more problems by using wrong solutions due to differnt versions of Galaxy S

you can get a rescue kit from My Android Collections and or a solution from My Android Solutions

But First powerdown, pull out Battery, SIM CARD, and EXT.SD card, press power button for a minute, than powerup without SIM and Ext.SD Card...make sure you have more than 50% battery charge before you attempt any sort of flashing.
[Galaxy S I9000 General] mskvorc1:
I need help. My home button on galaxy s doesn't work. When phone goes into recovery mode I can't select anything. Is there workaround? E.g. when I was putting cyanogen mode on my phone, I was using other recovery and it doesn't need home button. I think it was speedmod via Odin.

when I go into recovery that work's without home buton says CWM-based recovery 6.0.1.2

Solved the problem.
[Galaxy S I9000 General] donematrix:
Well, you can omit step 5 of Section B. This step is just to make sure that the phone is reset to factory mode.
[Galaxy S I9000 General] fatbobinspain:
Thanks a million, just saved my life!!!
[Galaxy S I9000 General] donematrix:
You are very welcome. I am glad that this post helped you. Please share this post (word of mouth/facebook/twitter) to help others!
[Galaxy S I9000 General] engwee:
Easy as cake, thanks. Had a friend ask me to restore his phone and I was worried I'll have to do a lot of research.

Your thread was the first link on Google!
[Galaxy S I9000 General] donematrix:
Thanks. I am glad that this thread has helped you.
[Galaxy S I9000 General] goranbm:
I need help, i tried to flash Froyo on my Galaxy S (i was on CM 10.1) and then after Flashing is complete, i did everything in the recovery like it says, but when galaxy S logo passes, i am stuck at black screen ?? Any help please....
[Galaxy S I9000 General] donematrix:
Did you flash it with PIT file, PDA file, PHONE file, and CSC file. If you didn't, just follow the steps again to flash.
[Galaxy S I9000 General] goranbm:
Yes I did, but it looks like I had problem with FROYO ROM i tried to flash, something with dbdata file, but now i flashed Gingerbread XXJV9 and phone works fine :D
[Galaxy S I9000 General] donematrix:
great dat the problem is solved.
[Galaxy S I9000 General] breamo:
Thank you from Australia

Thanks to the original poster.

I have a Galaxy S purchased in Australia in 2011 and after upgraded to Gingerbread recently, it was slow as hell.

And I followed the instruction and downloaded the Asia 2.2.1 Froyo pack and the odin 1.7, it worked perferctly.

I do have to reuse an older Vista laptop to get the phone recognise by the PC so that Kies can get connect to it and did the backup and restore.

I could not get the connectivity in Windows 8 and I have downloaded and installed the USB driver for Samsung that supposed to help. So there you are and thumb up to the original poster!

Breamo
[Galaxy S I9000 General] donematrix:
You are welcome.
[Galaxy S I9000 General] Althafkhan:
Struck in startup mode

I followed the procedure but it struck with startup mode

In section b (step 7): “After it is completed, your phone will restart automatically and it will load into recovery mode.”

It not comes up with recovery mode got hung in startup mode, my mobile just showing “galaxy s gt-i9003” and hangs.

So I could not able to proceed with “wipe data/factory reset” please help me how to proceed further
[Galaxy S I9000 General] Althafkhan:
Not able to boot galaxy i9003

I followed the procedure but it struck with start-up mode

In section b (step 7): “After it is completed, your phone will restart automatically and it will load into recovery mode.”

It not comes up with recovery mode got hung in startup mode, my mobile just showing “galaxy s gt-i9003” and hangs.

So I could not able to proceed with “wipe data/factory reset” please help me how to proceed further
[Galaxy S I9000 General] donematrix:
I am sorry, but the files in this thread are for Samsung I9000. The flashing procedure for I9003 may be d same but you wil need the files made for I9003. You will need to google for those files.
[Galaxy S I9000 General] sheikdude:
can use this for Galaxy GT i9003

Can I use this same firmware to restore my galaxy SL (GT i9003) to froyo??

please reply
[Galaxy S I9000 General] donematrix:
I don't know. But better not try it if no one can confirm that it will work. The worst senario is that it can brick your phone.

When my Galaxy S was having memory problem, I tried retoring it with Galaxy S files, but still having the memory problem. So I decided to try files from a different phone. I tried the Galaxy S 2 files on my Galaxy S and it bricked my phone. My Galaxy S could not b turned on. I took it to 3 phone stores who do phone repares, and none can revive the phone. The phone died, just like that.
[Galaxy S I9000 General] sheikdude:
Thank you

Thank you donematrix.

I have found one froyo firmware for galaxy SL. I ll post the link if I succeed.
[Galaxy S I9000 General] donematrix:
Yes, please do.
[Galaxy S I9000 General] baloch58262:
After Restoration sim is not working

Hello sir i need help. i followed the procedure as you mentioned but after restoration my phones Sim , front camera and speaker is not working plz help
[Galaxy S I9000 General] Drugoli:
Awesome tutorial :)
[Galaxy S I9000 General] adrian1994:
swesome tutorial , but when comes to flashing with odin i a nightmare for me , i don't know what it is but it doesn't work
[Galaxy S I9000 General] donematrix:
Hi, are you flashing Samsung Galaxy S? The Froyo 2.2.1 firmware used on this post/tutorial will only work for Samsung Galaxy S, not S2 or S3, etc.

If you are flashing Samsung Galaxy S, then u just need to try again. Maybe you have missed out some of the steps.
[Galaxy S I9000 General] baloch58262:
Galaxy s

yes sir i am flashing Galaxy S GT-190000. i tried several time now it is not responding feeling like dead.
[Galaxy S I9000 General] freakymod2120:
Great work:good: thank you for the detailed tutorial
[Galaxy S I9000 General] donematrix:
Thank you and you are very welcome.
[Galaxy S I9000 General] tharonny:
First of all thank you for making this tutorial. When I used the i9000 it was running android 4.2.2, but since I gave it to my dad he wants to have android 2.2.1 (same as his galaxy mini). Now I managed to install 2.3.6 stable, but I want to downgrade it to 2.2.1 now.

Its a unbranded dutch phone. Now I can download a unbranded rom from sammobile, but that one comes without modem and to be honest I have no idea if these are compatible with each orther.

So now I am very intrested in your tutorial for downgrading, but I still wonder. Can you tell me which Froyo package I need for a dutch unbranded phone?

And I also would like to know if its possible to flash a branded rom on a unbranded phone?

Thank you very much!
[Galaxy S I9000 General] donematrix:
Sorry, but I don't understand. Are you going to flash your Samsung Galaxy S I9000? If so, what do you mean that your phone is a dutch unbranded phone?
[Galaxy S I9000 General] tharonny:
Hi. Indeed, im trying to flash a i9000. This phone came without simlock/brand so its unlocked.

Now I want to flash FROYO on it, but you gave a link which shows loads of different roms. I have no idea which one I have to download.

I was wondering if you could help me with this.