yashsingh1/xdaforums huggingface dataset:
[Nexus S Q&A, Help & Troubleshooting] mbolinao:
dude! lucky you i found this thread :p

I bought mine through Globe. I tested officemate#1's Sun sim and had officemate#2 send a text message to that sim while in my Nexus S, and I received it. I also sent a text message back to officemate#2 still using the Sun sim. and she got it back. So I guess we can say it's unlocked :)

Im not sure if I got lucky getting an unlocked Nexus S (even though there's a small sticker inside the Nexus S that says "this mobile may only be used with a Globe Sim card").

but i've read a lot of forum (since im researching about this because i have plans of using this in Singapore and i hate going through the hassle of unrooting and unlocking) and a lot of them say Nexus S units are unlocked even when a telecom carries it.
[Nexus S Q&A, Help & Troubleshooting] Matridom:
Google won't allow any provider to touch the software on the nexus line. So no matter what stickers it has or what the sales rep tells you, the phone is sim unlocked.

Sent from my Nexus S
[Nexus S Q&A, Help & Troubleshooting] ghost010:
oke this is actually a really simple answer.without the bloat information of the other guy's(sorry no offence.nice job participating in the question though)

the only carrier locked nexus.

is the nexus S 4G

cuz sprint doesnt use GSM+/hsdpa+

for its 4G.

the nexus S itself is a GSM phone.and will work on any GSM/HSDPA network.

i imported my nexus S out of the US. and it works fine on my Ben.nl sim(with working HSDPA,3G ect)

Ben.nl being a sister company of tmo-nl

Previously known as Samsung i9020

2G Network	GSM 850 / 900 / 1800 / 1900

3G Network	HSDPA 900 / 1700 / 2100

Announced	2010, December

Status	Available. Released 2010, December
[Nexus S Q&A, Help & Troubleshooting] yangrry:
In korea, that is fine! Korea model is not i9020.
[Nexus S Q&A, Help & Troubleshooting] reallyadvance2:
wow looks like a really simple answer :D LOL
[Nexus S Q&A, Help & Troubleshooting] praneethoct11:
Will I be able to use Nexus S (SHW-M200k) in India

Recently I bought a SHW-200K in South Korea.

Will I be able to use the phone in India.

I wanted a SUPER AMOLED model and I read at many places that Nexus S comes in unlocked versions only.

Is it True?
[Nexus S Q&A, Help & Troubleshooting] LordLugard:
Does your carrier in India use the same frequencies as the Korean model you bought? Did you at least look that up first?

Sent from my Nexus S 4G
[Nexus S Q&A, Help & Troubleshooting] praneethoct11:
I am not sure about the frequency used in India and Korea.

Before purchasing the product in Korea, I had checked if the phone would be working with the SIM card that I use in India. It was working.

The Nexus S variant that released in India says that it supports the following

2G Network	GSM 850 / 900 / 1800 / 1900

3G Network	HSDPA 900 / 1700 / 2100

I am trying to explore more about the frequency related things that you mentioned.
[Nexus S Q&A, Help & Troubleshooting] Buellrunner:
I was told that they all come carrier unlocked.
[Galaxy S I9000 Q&A, Help & Troubleshooting] jetpack101:
I have modded my phone with darky rom 10.1 and its running really well with this and the lagfix that came with the update. I'm currently getting about 1672 - 1752 in quadrant.

I was told that it can go even faster if running ext4

Should I just stick with what I have or try push the phone that bit harder.
[Galaxy S I9000 Q&A, Help & Troubleshooting] darckengel:
you can use this app:

https://market.android.com/details?id=com.electricsheep.asi&feature=search_result
[Galaxy S I9000 Q&A, Help & Troubleshooting] jetpack101:
Thanks

Downloading it now
[Galaxy S I9000 Q&A, Help & Troubleshooting] jetpack101:
Ok have it

Where would I find that ext setting thing ?
[Galaxy S I9000 Q&A, Help & Troubleshooting] darckengel:
Sytem Tab

Mounting points
[Galaxy S I9000 Q&A, Help & Troubleshooting] jetpack101:
Found it thanks.

I'm running ext4 :)

Good to know.
[Galaxy S I9000 Q&A, Help & Troubleshooting] _delice_doluca_:
since you have darky rom and its kernel is in the voodoo family, you can download "voodoo conrol app" and see you lagfix status and do more ..
[HTC Inspire 4G] seh6183:
I was moving some stuff around on the internal SD card and must have deleted a folder or moved something because I can't download anything without and external card in the phone. I can't even use the camera without an SD card because there is no where for the pics to be saved. Can someone with knowledge of the stock Android file system tell me what I may have messed up?

The internal storage of the phone should all be located under "mnt" right?

In using leedroid
[HTC Inspire 4G] Scott_S:
First... Terminology...

You were moving stuff around on your SD card, right? The one that can be physically swapped out? Not the "internal" memory, I assume.

With root explorer or something?

The SD card that is removeable from the phone, like the what you made your goldcard out of, is under /mnt/sdcard.

The internal memory, where the OS is stored and whatnot, is different.
[HTC Inspire 4G] seh6183:
On my Atrix it was referred to as an internal SD card which would be the internal memory of the phone, im new to android so I assumed this is how it works. I am not referring to my external SD card, I can format that if need be. The internal file systems of my phone is messed up and I seem to be unable to save anything to it.

and yes I was using root explorer.
[HTC Inspire 4G] zelendel:
The inspire only has one storage system and that is The external SD. That is the only place things are stored. There is no internel memory like the atrix or captivate.
[HTC Inspire 4G] seh6183:
Wow thank you. I wasnt aware of this. So I wont be able to download pictures from the internet or use my camera unless I have an SD card in at all times?
[HTC Inspire 4G] Hunt3r.j2:
That's completely correct.

Just invest in a decent microSD card, you'll be carrying it to your next phone anyhow.
[HTC Inspire 4G] zelendel:
What he ^^^^ said. You can get a decent 16 gb class 10 card for about 40 bucks or so. Should look into it. Internel memory is not the best place for your pics. If something happens and you brick then you lose everything. With external it is pretty save
[HTC Inspire 4G] seh6183:
I have a 16 gb external. Got it for 27
[HTC Inspire 4G] seh6183:
Putting it back in now lol
[HTC Inspire 4G] zelendel:
Nice. What class? 2, 4 ,6, 10? I was able to find a class 10 for 39.99 at best buy and that was the best price I have seen
[HTC Inspire 4G] seh6183:
Class 4
[HTC Inspire 4G] ZeroRilix:
I'm curious and have a couple questions about you SD card. What brand is it? Where did you get it? Finally, did that price include shipping and applicable taxes. Thanx much!
[HTC Inspire 4G] zuriken:
Oh come on dude, Moderators shouldn't make sarcastic comments like that.

The Inspire has it's own internal storage (Elixer calculates it to 1.1GB), as well as external storage on the SD card.

If the Inspire had no internal storage, and only put stuff on the SD card, then WTF would be the point of the "move to SD" function, and the fact that it actually does work?!?!

The "internal" storage uses /data, /cache, and /system, while the "external" SD card uses /mnt/sdcard
[HTC Inspire 4G] zelendel:
First off it wasn't sarcastic. Second the OP was asking about storing pictures and those are only stored on the external SD. The move to SD is for apps that are stored in data/app, when moved to SD. it changes the directory to sdcard/data/app
[HTC Inspire 4G] zuriken:
Sorry for assuming your posting was sarcastic, I see so much of that here. :D

I wonder if any devs out there are working on a way to force the camera software to be able to use the internal memory instead of just the SD Card, or at least use it as a buffer while writing to the SD. That would sure cut down on the annoying shutter lag, I bet.
[HTC Inspire 4G] sumkee:
did you look at slickdeals or even costco for different prices? Slickdeals usually have a lot of deals on USB flash drives and SD cards. Hope that helps
[HTC Inspire 4G] zelendel:
I understand where your coming from as it is an all too regular sight recently. I am normally very laid back and easy going. As for the shutter lag, I only have my captivate to test in but, I have never seen a diff if it is stored on the internal or external SD. But I also don't use the stock camera.
[Acer Iconia A500] sc2k:
reserved for me
[Acer Iconia A500] Glebaka:
Im just asking, in case3 u need dump of mmcblk0_start ,but what if dont have it, only UID?

Should i make dump of mmcblk0_start just in case to be insured that evrything will be ok if smth happens?

Any way thks fo tutorial)
[Acer Iconia A500] sc2k:
Having a dump in <case 3> makes everything easier. But it is not mandatory. Nevertheless it's generally a good idea to backup mmcblk0_start.

btw: thor's CWR will backup mmcblk0_start since version 1.2 if you do a nandroid backup.
[Acer Iconia A500] dmue:
Hi there,

after i typed "dd if=/dev/block/mmcblk0 of=dd if=/dev/block/mmcblk0 bs=512 count=13312 of=/sdcard/mmcblk0_start" in the adb shell i got an invalid argument error:

if: illegal argument combination or already set

What i should do?
[Acer Iconia A500] kimycai:
when i get a SOS checksum error and a LNX checksum error,can i copy files from pc to a500 device? how?
[Acer Iconia A500] sc2k:
Sorry, there was a typo. Should be correct now :)

Thanks for the hint.
[Acer Iconia A500] sc2k:
The procedure for this case is much more complex. If you do something wrong, it is getting even more complicated.

I will not publish details currently, sorry. If you get this error, contact me.

As soon as some tools are finished i will update the OP.
[Acer Iconia A500] dmue:
Ah ok, thx. ;)
[Acer Iconia A500] brain117:
thank you sc2k!
[Acer Iconia A500] kimycai:
really？

waiting……
[Acer Iconia A500] Raphaello:
Hi :)

After I typed "dd if=/dev/block/mmcblk0 bs=512 count=13312 of=/sdcard/mmcblk0_start" in adb i got: "dd if=/dev/block/mmcblk0 bs=512 count=13312 of=/sdcard/mmcblk0_start /dev/block/mmcblk0: cannot open for read: Premission denied"

What i done wrong? :(
[Acer Iconia A500] sc2k:
You need to be root :-)

Type

su -

before.

I will update the guide :)
[Acer Iconia A500] Raphaello:
Thanks but it's doesn't work yet. I have root access. I tried type "su-" but it is the same message "cannot open for read: Premission denied". I install usb drivers and the others think from guide hmmmm....
[Acer Iconia A500] bpivk:
Did you type su- or su - (notice the space between su and -)?

Also you'll have to confirm su permissions on the tablet.
[Acer Iconia A500] Raphaello:
I typed "su -" with space between su and -

I have USB debugging turn on

When i type "su -" it say "Premission denied"

I really sorry for problem and thanks you for trying to help me :)
[Acer Iconia A500] bpivk:
Is your device rooted? Because it has to be.

And if it's rooted did you notice a superuser app popping up after you run the command.
[Acer Iconia A500] Raphaello:
What a shame, I did not notice a superuser app popping up :/ Now it's ok. Thank You very much. I must learn a lot. Only think was taht I can't pull this file to my computer via "adb pull /sdcard/mmcblk0_start" but i copy it directly from device :) Now I feel safe.

Thanks a lot guys :)
[Acer Iconia A500] sp3dev:
Well, actually you should be able to dump directly to adb without copying to device to save some time.

like dd if=/dev/mmcblk0p1 count=X bs=Y

but without specifying of= or using of=-

and don't forget to redirect it to file. like "adb shell "dd if ..." > dump_p1". Not sure it will work fine, but I used it once on another device to dump block device image.
[Acer Iconia A500] apple_hd:
i download the android sdk zip file, but is seems that the "tools" folder doesn't include the adb executable file , how should i do?
[Acer Iconia A500] Euclid's Brother:
look under platform-tools
[Acer Iconia A500] Euclid's Brother:
This is the command to do as you suggest, but somethings wrong because the filesize ends up being larger than it's supposed to be so obviously the MD5 sig doesn't match either. (file size: 6,827,913 bytes instead of 6815774 bytes). The DD works fine if your outputing to a local folder on the tablet.

I guess windows is doing some EOL conversions on it.

DON'T USE THIS. DOESN'T WORK RIGHT. This is for discussion only
adb shell su -c "dd if=/dev/block/mmcblk0 bs=512 count=13312" >c:\temp\mmcblk0_start.img
[Acer Iconia A500] sp3dev:
I would not be surprised. Things never work as expected in Windows when it comes to IO. But anyway, look inside the file. Maybe shell outputs some garbage at the end or start. Anyway, if that happens, then maybe it's better to leave stuff as is. Experienced users will figure it out while the rest will only get confused
[Acer Iconia A500] clinteas:
I'm having a Groundhog Day issue with my Iconia A500, installed apps vanish after reboot, so do transferred files, and changed system settings just reset. Gingerbreak does not work for root access, factory reset just reboots the device. Tried to update to 3.1 to see if that makes a difference, but got the SOS checksum error when booting into recovery.

Now, I've followed all the steps as indicated in this thread, but how am I meant to run itsmagic or do anything else if I can't get su to work ? I get "permission denied" of course. And yes, I've got my UID stored away.
[Acer Iconia A500] FloatingFatMan:
Time for you to PM the OP, sounds like you've REALLY forked something up."
[Acer Iconia A500] sc2k:
Have you already tried to wipe with this trick?

Edit: You may try this for rooting.
[Acer Iconia A500] clinteas:
<blockquote>Have you already tried to wipe with this trick?</blockquote>

I saw that, thanks. I just wasn't sure what to do next after the done. I'm a Linuxer, but have only had this tablet for a week.....

As to the iconiaroot.apk, yes I tried that, but since I'm running 3.01 it gave me the parsing error.
[Acer Iconia A500] sc2k:
Ok. I'll try to build a 3.01 apk. Don't know if the method actually works.
[Acer Iconia A500] clinteas:
You guys are pretty awesome, thank you ! I just tried the wipe trick, get the erasing cache... message, and then it boots straight back into Groundhog Day !
[Acer Iconia A500] sc2k:
But your recovery is still not working?
[Acer Iconia A500] clinteas:
<blockquote>But your recovery is still not working?</blockquote>

Nope. image SOS checksum fail.

Maybe time to send it in.
[Acer Iconia A500] sc2k:
No need to. This can be easily fixed. Just wait a few minutes until iconiaroot is ready.
[Acer Iconia A500] sc2k:
Ok, check this thread and try to install version 1.1 which should work with HC 3.0.x
[Acer Iconia A500] clinteas:
Installed the apk to the Iconia via adb. Icon shows up in apps. Clicked "root".

Extracting..

Install su_>/system/xbin/su

Install superuser.apk

Sleeping 5 seconds.

Tyring to get su now...please accept

Something went wrong..You are NOT root !
[Acer Iconia A500] sc2k:
Please try again. Sometimes the 5 seconds are not sufficient to install superuser.apk. if still doesn't work, please send me an adb logcat via PM.
[Acer Iconia A500] sjarntz:
secure boot: image LNX checksum fail! Please Help

Hey, I have the image LNX checksum fail. I do have my UID from previous use of CWM. Tried reverting to Stock 3.01 ROM and this occurred. Also with trying to Flash update I get stuck on "booting recovery kernel image". Can anyone offer any help with this or is this ACER bricked for good?
[Acer Iconia A500] Moreth:
Please s2ck I need your help!!!!

Hi everybody, I'm a neophyte so please be patient with me. When I boot in normal mode I have the LNX checksum error. I tried to follow the HowTO by sc2K but I am very confused...

I do not have the "UID" so I downloaded usbdeview and I got the serial number. But Now I do not know how to get on. What should I do? Please s2ck help me!!
[Acer Iconia A500] xdamanu100:
this is a message for sc2k!

You have spent time & effort pm & now my tab is back to full working order!

Thank you Again xdamanu100.

I would like to give you a drink Paypal, let me know your details. you have mine.

ANYBODY HAVING ISSUES WITH BAD CHECKSUM before you totally brick your tab contact him. and remember get your UID number NOW!!!!!!(even if you are not bricked now, you never know)

Thanks again....

Please note if Sc2k helps you, you should be grateful and give him something! he has spent time & saved me from sending back my tab!

(ps I know how to upgrade & downgrade rom, but uid secure boot was past my knowledge!)

Remember to run itsmagic!
[Acer Iconia A500] sp3dev:
For those of you who have ignored all the warnings and didn't make a backup of UID. There is good news. The bootloader sends it back to nvflash on any command.

So, you need

1. A usb traffic sniffer (I'm using Wireshark on linux but you need to have debugfs and usbmon driver)

2. nvflash (find any on the internets)

Do the following

1. Power off your tablet

2. Connect your tablet to usb and make it enter APX mode (push the reset with a needle and power button simultaneously. release power button when the white led turn on, then release the reset button)

3. run nvflash --sync

you will see an rcm error because you have not supplied nvflash with the Secure Boot Key.

Now look into the captured packets. The first bulk data request coming from the device contains the UID in it last 8 bytes. Beware, you need to reverse the order of bytes as the whole 64-bit number is little endian.

Look at the screenshot if you are confused - http://img88.imageshack.us/img88/2719/uidi.png
[Acer Iconia A500] EdwinSST:
Hello sc2k ihave also the secure boot: image sos checksum fail! error, but i have not rooted my tablet so i get no su in adb but i have my serialnumber.

This is the complete message of my tablet:

Erasing Cache before SD update...

SD update cmd: recovery

--update_package=SDCARD:update.zip

secure boot: image sos checksum fail!

can you help??

regards Edwin
[Acer Iconia A500] al-motamel:
I have the same problem

I did many thing to solve it

but I can not fix it

when I but any thing on internal sdcard after rebort the device it goes:confused:

and when uninstall any app and report the device it comeback agine:confused:

any body can help me
[Acer Iconia A500] sc2k:
It is probably a hardware issue. Seems like the internal memory is dead (or at least some Vreg).

There is currently no way to recover from this error. You could try to press reset a few times or drain the battery and see if it helps.

If you still have warranty I'd recommend you to return it for repair
[Acer Iconia A500] birkholze:
I'm also having this problem along with the LNX checksum fail. is there no solution to this?
[Acer Iconia A500] Euclid's Brother:
SC2k.. is there any way the uid can be retrieved from an apk? or a compiled executable?
[Acer Iconia A500] sp3dev:
you can retrieve it from the device itself via nvflash.. just search the forums, i have posted a brief guide. you need a usb traffic sniffer and nvflash. just run nvflash --sync in APX mode and among the first packets from the device the UID will be sent to the desktop
[Acer Iconia A500] Euclid's Brother:
Thanks, but I need to be able to get it from within a running apk. Either via API or a shell command.
[Acer Iconia A500] VelosCohagen:
Have LNX and SOS Checksum Failure on my A501. Would be glad, if anyone can help me.
[Acer Iconia A500] rcraig617:
I have the lnx checksum error but i don't know if i have stock recovery, thor's, or another recovery? how can i figure that out?
[Acer Iconia A500] VelosCohagen:
No one there who can help me?

Asked sc2k through PM, but he isn't answering for a week now. :confused:
[Acer Iconia A500] Skrilax_CZ:
Install the patched ICS bootloader, CPUID is in your backups folder.
[Acer Iconia A500] VelosCohagen:
Already tried that with A500 APX Flash Tool. But doesn't work. NVFlash keeps freezing. A500APX Flash Tool shows " Flashing Bootloader (EBT) stage two - uploading image", Dos Promt shows "NVFlash started [Resume Mode]" and then nothing happens anymore.
[Acer Iconia A500] CanuckinPA:
Need Some Help Here

I am trying to install the Lightspeed ROM in my rooted A500 (currently running TegraOwners ICS v144), but I get the SOS checksum error.

I tried sc2k's instructions on the itsmagic thread by downloading the backup tool.

When I ran the batch file I got this screen and that's it. Nothing happened and while it says the full dump files exist I can't find them in the directory.

Hoping someone can help out.
[Acer Iconia A500] Skrilax_CZ:
Install patched ICS bootloader so you don't have to worry about checksums.
[Acer Iconia A500] CanuckinPA:
It seems that I can't progress at all until I find my cpuid. However, I am having no luck in finding it. :( :confused:
[Acer Iconia A500] CanuckinPA:
Finally found the cpuid and used BlackThunder's APX Flash tool to flash V8-Thor_1.7.3_recovery.a500apx

Thanks!
[Acer Iconia A500] bogyman:
sos &lnx checksun fail (Help!!!!)

My little bro installed wrong kernel on my acer A500:(

now i see sos and lnx checksum fail.

I'm enter usb deview and get this serial no: 37c70404340e617 -this is the right one!? (add attached screen shot)

If the answer is yes or not what i do next?
[Acer Iconia A500] tolettinggo:
weird problem with checksum failure LNX

Hi i have a problem.

I have an acer iconia a500, im stuck at the android symbol after upgrading to a jb unofficial 4.2.1 it ran fine for a while and then ended up stuck in a boot loop, i have researched as much as i can and tried everything including, nvFlash, Blackthund3rs apx tool. and so on so fourth, tried flashing several roms. even tried going backwards to stock, one thing i noticed was that after using nvflash when the screen goes to "PASS" it reads a secure boot: checksum LNX fail! so i researched that and tried what the forums instructed and still end up with the same results.

Anybody want to stick a finger in on the situation to let me know if i bricked the thing or not?

P.s. i can still enter recovery, apx mode works. i have flashed several recoveries, Thor, Twrp, A500 recovery. thinking that was the problem and a different recover would help me, im running the ics skrilax unlocked v8 bootloader, but got pushed back to thor-kernel_v1.16mini obviously HC version, will keep pressing on in my journey to find a resolution for this problem until it is resolved. thanks
[Acer Iconia A500] Pip513:
I could really use some help!

I've got A500 with twrp on it, and the LNX checksum error. Can anyone guide me in the right direction? I was running ICS before, wiped everything because it was running awfully slow, flashed the same ROM I had before, and got the checksum error.

I still have access to TWRP.
[Acer Iconia A500] dibb_nz:
Ha hit thanks instead of quote...nvm:)

See this post http://xdaforums.com/showthread.php?p=37255618 your prob is different but the fix is the same..you are gonna need yr cpuid for this hope u got a nandroid backup somewhere, yr cpuid is in a text file there. Cpuid guide in my SIG. With other methods to get it..good luck:)
[Acer Iconia A500] Pip513:
Ah, thank you! I'll give it a try this weekend.
[Acer Iconia A500] Tom in AZ:
PM being sent with UID & mmcblk0_start.img link.

THANKS!!!!!!!!!

Tom

*****Nevermind!!! I got it unbricked!! Thanks for this thread though!
[Acer Iconia A500] dot2:
Hi,

My a500 is bricked, and i could not recover my UID.

Any way to still save it?

Thanks!
[Nook Color Q&A, Help & Troubleshooting] akenis:
Just followed instructions for CM7 on eemc with nightly 106 and OC kernel.

Rom Manager says no superuser? So I installed from market and superuser says there's updated binary but can't complete auto install. But it put a .zip on sd card and said to instal via recovery... which puts me back to step 1 which was trying to use ROM manager to write recovery?

What went wrong here and how to fix? Didn't have any of these problems when I did my son's nc the same way last week.
[Nook Color Q&A, Help & Troubleshooting] akenis:
Don't know how to install cwm w/o rom manager. Put my card back to cwm img and tried to flash the updated binary.... says bad?

Guess there's something broke with 106 and su.

Started afresh with cm 102 (as recommended), gapps, and Oc kernel. All is well...

Zeam Launcher

Nook tweeks

Netflix

Netflix fixer

...good for now!