yashsingh1/xdaforums huggingface dataset:
[myTouch 4G General] VoiD_Dweller:
<6> [6.355224] MMCBLK0: MMC0:0001 M4G2DE 2.10 GiB

I suppose I have the bad one. I used gfree method, Flashed CWrecov also running Royal Gingerbread 3.0. So far no problems however I have only flashed the Rom once, running everything that comes with the release, no other major mods besides simple UI stuff. Been going over a month.
[myTouch 4G General] curtisk:
<6>[ 7.785491] mmcblk0: mmc0:0001 M4G2DE 2.10 GiB

oh crap i got a bad one. no problems yet though but i do a lot of flashes
[myTouch 4G General] 6long:
I really want to run custom roms on my phone, but I have the bad chip. I got mine off of craigslist.. does anyone have a good excuse to get a replacement from T-Mobile?

Or if I root, and god forbid, the emmc fails, would I be able to send it back to T-Mobile for a replacement?
[myTouch 4G General] saranhai:
i don't think you can get a replacement if you bought it from craigslist...

sorry bro
[myTouch 4G General] mwilliams05:
Yes, you can get a replacement from tmobile. You just can't tell them you rooted your phone. I was told by a tmobile rep that if your phone is still within the warranty period you can get a replacement as long as there isn't any physical damage to the phone (or water damage of course). I purchased the optional warranty which gives you unlimited warranty protection on any phone you use (I.e you could buy one off craigslist and use that warranty, it's like $4/mo).
[myTouch 4G General] 6long:
Would you suggest that I just gfree my phone until it bricks, and then get a replacement, or try to get one right off the bat? If so, what excuse should I use?
[myTouch 4G General] saranhai:
I wouldn't do that...
[myTouch 4G General] SirChang:
So my first MT4G soft-bricked. Confirmed it had one of the "bad" eMMC chips.

Got my replacement, and, being very cautious, I want to check the chip before I root or anything else. But the new phone came with 2.3.4 Gingerbread pre-installed (which ordinarily I would be all sorts of thrilled about!)... and that seems to mean that VISIONary (R14) is unable to temp root it (tapping on "Temp Root Now" shows the "Rooting now" message, and then the background goes completely black and sits that way for... well... I waited up to 10 minutes... and knowing it took less than a minute on my old phone, felt pretty confident it wasn't going anywhere and pulled the battery).

I'm unable to run the cat on /proc/kmsg to check the chip (get "Permission denied" in both terminal emulator apk and through the adb) without su.

Anybody have any pointers on some way I might be able to run the chip check?

EDIT: Maybe the info is in the output from the "dmesg" terminal command?? I can run that without su... though I can't grep it without su, so trying to discover if the eMMC info is listed is daunting.
[myTouch 4G General] Milehighmeltdown:
I'm in the same boat, MT4G gingerbread 2.3.4. When I run the first command - adb reboot recovery -my phone reboots then shows a picture of my phone with a red triangle and an exclamation mark.

I know I can't root or anything right now unless I go back to froyo, but

Still would like to know what chip I have. Any help appreciated.
[myTouch 4G General] mwilliams05:
It's up to you if you want to take the risk of possibly bricking your phone, but if you attempted to return the current device (because it still may be under warranty) you may get lucky and get the "good" chip. If you plan on rooting your phone I would definitely get the extended warranty (I believe this is only offered when they send you a replacement phone, after that you can't add it on) that covers any device you use as your phone. That way if anything happens (like bricking your current phone or a future phone) you will be covered as long as it isn't physical damage.
[myTouch 4G General] nielsd:
M4G2DE

Heyho,

got a HTC Desire Z with a M4G2DE which got bricked after some weeks - rooted with gfree and flashed with Recovery Manager up to Cyanogen 7.1-rc1 - same symtoms (hungs during usual work - after reboot stuck on boot).

Send it in (with S-OFF, Clockwork recorvyr and empty data / system partitions) to HTC germany and wrote to them that i have a wrong / broken eMMc M4G2DE - it would be nice to get any other eMMc then M4G2DE.

After 6 weeks i got it back with replaced motherboard which helds a M4G2DE (warranty repair!...).

Rooted and flashed to Cyanogen 7.1-rc1 again - nor probs until now (3 days of usage) and i strongly hope that i got a "working" eMMc one now.

hth,

Niels.
[myTouch 4G General] 6long:
I called T-Mobile yesterday and I'm covered under the manufacture's warranty for another year. So, what's the difference between the manufacture's warranty vs the extended warranty? They told me my phone was covered as long as it's not physical damage. And if I do want that extended warranty, do I wait until my phone bricks for the first time and then ask for it?

Also, to my knowledge, rooting voids the warranty, so is it safe sending in a bricked phone since it would be rooted? I'm planning to root my 'bad chip' phone because it sounds like they're shipping replacements with 2.3.4, and then I wouldn't even be able to temproot with that. Thanks!

**Sorry for hi-jacking the thread
[myTouch 4G General] SirChang:
There should be no difference between the manufacturers warranty and the extended warranty as far as the phone itself goes (the extended warranty just "extends" the manufacturers warranty, after all) EXCEPT... T-Mobiles wonderful "processing fee". If you return a phone without the extended warranty (even if it's still covered by the manufacturer's warranty), T-Mobile charges you a $20 processing fee. WITH the extended warranty, they apparently only charge you a $5 processing fee (still a total rip, but better than the $20). Of course, they charge you a certain amount per month for the extended warranty, so you have to decide for yourself if you think it's worth it. And like mwilliams05, you can only get the extended warranty when you first get your phone - you can't add it later - so if you have to figure into the decision how long you think you'll have your phone, and whether that's longer than the manufacturers warranty.

So, I read in another post that what you're really voiding by rooting is the carrier's service agreement/contract, not necessarily the manufacturer's hardware warranty. Not sure how accurate that is. If true it would mean that the carrier can terminate your service if you root your phone, but since the issue in this particular case is faulty hardware the actual warranty still holds. Like I said, maybe that's just wishful thinking, but it's what I'm choosing to believe at the moment :D
[myTouch 4G General] saranhai:
i got my replacement at no cost :D

same eMMC failed issue
[myTouch 4G General] Phateless:
You can roll back from 2.3.4 to 2.2.1, there's a guide in development. Do a search.
[myTouch 4G General] SirChang:
Not if the problem stems from the bad eMMC chip.

If the eMMC fails, the hardware resists any further updates or writing. So, if you happened to have been rooted at the time your eMMC chip goes, you're not going to be able to unroot or roll back.

EDIT: Oh... duh... I was in a different place entirely. Sorry Phateless. I see you were responding to a separate remark.
[myTouch 4G General] mwilliams05:
The "extended warranty" covers any phone you purchase or use as your primary device (meaning you could buy a htc sensation off ebay/craigslist and brick it and be covered under the "extended warranty"). So the way it was explained to me was that as long as you are a tmobile customer any phone you use new or old is covered.
[myTouch 4G General] SirChang:
Still looking for a way to check my eMMC chip on a stock MT4G.

I followed the first part of Setherio's "downgrade" guide to get temp root in adb, but the cat /proc/kmsg command still doesn't work (no permissions error, but it just appears to hang). Assume it's because I need to be booted into ClockworkMod's recovery (??).

Less important at the moment is grep doesn't work, either (not found). Downloaded busybox, but of course I can't "install" it since I'm not truly rooted. Tried piping to a text file and just searching for mmc0, but the text file also appears to be incomplete (it's only a couple lines long... not unexpected since the command without piping hangs).

Anybody think of any other way to just check the eMMC chip?
[myTouch 4G General] stunndd:
I just used this on my replacement phone I just got. Sent in my bad chip just for a chance of getting the good chip. And it WORKED.
[myTouch 4G General] SirChang:
Thank you thank you, stunndd!!

That's what I was looking for!

Unfortunately, mine's still a M4G2DE. Errrrg.

And no chance of getting a good one since they're no longer giving MT4Gs as replacements. Errrrg x 2.
[myTouch 4G General] Phateless:
I got a replacement mt4g just recently. Good screen, good chip, good power button. Warranty roulette finally hit jackpot.
[myTouch 4G General] stunndd:
I called on Friday and I got my replacement MT4g yesterday. So I guess they still do at least some replacements still. Try calling them again. :D
[myTouch 4G General] Milehighmeltdown:
Woooo hooo

Good screen, good chip

Now if someone could just find a way to root GB with out downgrading.......
[myTouch 4G General] mwilliams05:
So they have discontinued the Mytouch 4G? I didn't know they stopped giving them out as replacements. If you return a Mytouch 4G do they now offer the HTC Sensation 4G?
[myTouch 4G General] SirChang:
T-Mobile is no longer offering MT4G replacements, no, since about 2 weeks ago. Haven't heard what happens if you go direct to HTC... you might still be able to get them there.

TMo has offered different folks different replacement options, actually. Hard to get a handle on the rhyme or reason. Some have been given the option to choose from a selection, others have just been told flat out "you will receive such-and-such".

The most common replacements offered (either as one-for-one replacements, or as choices) have been:

- G2

- Galaxy S

- Sidekick 4

No reports of the Sensation being offered, as of yet. Can't imagine it would be. It's a pretty significant jump in price point, and that would be a no no. Particularly when TMo can get away with giving you a replacement that has a lower price point.
[myTouch 4G General] mwilliams05:
I guess the Mytouch 4G was sent in A LOT. I remember going to a tmobile store and one of the reps telling me that he always sees people coming in with issues with the Mytouch 4G. Maybe that's why tmobile stopped issuing it as a replacement device (costing them too much money on defective devices). I personally wouldn't want any of the "most pooular" replacements you listed. Maybe if you specify that you only want an HTC manufactured phone without a keyboard they will give you the Sensation 4G.
[myTouch 4G General] CBConsultation:
Good one here.
[myTouch 4G General] stunndd:
Have you called Tmo or just gone in to a store? My wife called them and had them send her 2 replacements in the last week. (one kept freezing and the replacement they sent wouldn't let you turn off the display. It'd turn itself right back on) And I got mine in the mail on Monday. They didn't question any of them at all.

Not questioning you, just think its funny how it must depend on the rep that you talk to.
[myTouch 4G General] SirChang:
I'm not altogether sure that there's much of a cost for T-Mobile at all. I think, in the end, the cost of a defective phone gets passed through to HTC. But, yes, I get your point.

Notice that I said "most common" replacements, not "most popular". BIG difference. NONE of the replacements have been particularly "popular" with the folks on the T-Mobile forums. Some of them made quite a stink about the options, and TMo held to their guns insisting those were the only phones available for replacement. Sometimes TMo offered only ONE option (usually the G2) - take it or leave it. I don't think you'll ever get them to agree to exchanging for a Sensation, but more power to you if you try and even more power to you if you succeed.

My question is... are MT4G's the only devices that suffers from the faulty eMMC chip? Or is moving to a different device like the G2 or Galaxy S (or even the Sensation, for that matter) just opening up a whole new set of faulty hardware idiosyncrasies?
[myTouch 4G General] gixer2000:
I believe the G2 has the same issue.
[myTouch 4G General] steven-026:
Ok, so I found out I have the "bad" eMMC chip. My phone has never been rooted, and I got it back in July I believe. My phone can be kind of laggy sometimes too, which I find weird, cuz' the processor in this is pretty fast, and I don't recall anyone having problems in the past, so I wanted to know if anyone else had their phone lag on them, before rooting, and which eMMC serial they had/have.

Edit:What would I choose for the poll, considering I haven't rooted ever?
[myTouch 4G General] gixer2000:
I had the bad chip for a few months and then the screen broke. So I filed and insurance claim and got the good chip.:)
[myTouch 4G General] saranhai:
the g2 (desire Z) also has this issue.
[myTouch 4G General] $pitacular1:
M4G2DE = Mytouch 4G 2 Die Early
[myTouch 4G General] AggNA:
Lol

Sent from my HTC Glacier
[myTouch 4G General] dusty-:
Is there a way to repair the emmc chip? I tried rooting using visionary and now my phone is capoot lol.
[myTouch 4G General] saranhai:
once the chip is dead it's dead, no way fixing it
[myTouch 4G General] nba1341:
How do I check which chip I have without root?

Edit: temp rooted with visonary and it has the bad chip good thing this isnt my phone
[myTouch 4G General] qayum:
So it seem like I have the bad chip.

I rooted gfree no problems... but should I go for an exchange to try to get a good chip? Is it possible? What would you say to your carrier/dealer?
[myTouch 4G General] saranhai:
good or bad screen?

any other symptoms that the MT4G has?
[myTouch 4G General] qayum:
Bad screen and bad chip. No symptoms so far, everything is well.

Although, I am concerned...
[myTouch 4G General] saranhai:
Replace it for the bad screen :)
[myTouch 4G General] GrantK:
can't find device

I'm having a problem determining my eMMC chip. I have installed the ADK, and when I go to the DOS prompt I can see my device when I type adb devices

I then issue the adb reboot recovery command and my HTC Panache (aka myTouch 4G) reboots and has the triangle with the exclamation mark on it. If I type adb shell, it comes up with a message saying something like "No Devices Found".

I am running Windows 7, 64-bit. I have USB Debugging enabled on the phone.

If I try using adb shell before issuing the adb reboot recovery command, I get the $ prompt. If I try to enter cat /proc/kmsg | grep 'mmc0:0001' of course I get the permissions denied message.

So, I assume the USB driver is working when the phone is is connected normally to the system, but it can't connect when the phone is in recovery mode.

Any suggestions?
[myTouch 4G General] AntonJart:
Download terminal emulator from the market. No need to use computer at all.

http://xdaforums.com/showpost.php?p=15410698&postcount=341
[myTouch 4G General] GrantK:
Thanks a lot AntonJart. Looks like I have M4G2DE

Grant
[myTouch 4G General] _ice_:
anyone wanna take a look at my thread here:

http://xdaforums.com/showthread.php?p=17560526#post17560526

what could have caused this fail -UZ error?
[myTouch 4G General] MRpeabodyia:
Just received two MT4G replacements from T-Mobile. Our previous ones had both the bad chip and the washed out screen. I called this weekend and received them on Monday. So they are still sending out replacements. I can't tell if they are refurbs or not. The look brand new to me. Anyways, just tested one and it has the "good chip" and the screen looks amazing compared to the old one. I'm assuming the other will be the same but I will let everyone know when I get home.
[myTouch 4G General] Etrick:
Well. Had mine an hour and rooted. Wife likes hers stock. Mine was bad chip/bad screen and hers was both good. Rooted and flashed fine. Started getting problems with touchscreen wwaaayyy out of calibration. Really bad lag. Was fine for almost a month after sticking with unity (nice rom). Figured was an app. Removed some stuff.. tried reflash. Figured id better unroot while I still can. Made it to s=on and she turned off. Then id get a vibrate but nothing when trying to turn on. Once the backlight came on. Now nothing. Needless to say... wifeys gonna continue enjoying her stock phone.
[myTouch 4G General] r0mmel:
i got my mt4g replacement last friday, it was because power button didnt work. now i got the bad chip and good screen. trying to find out what really happens when u get the bad chip. i rooted fine with gfree, and put eng hboot. the root.sh didnt work for me.

what should i do? unroot and return? hmm :(
[myTouch 4G General] abigscarytree:
So after spending 6 hours trying to root my htc panache I found out I need to find the emmc chip. So after a long time I finally got adb running but now I get an error. Whenever my phone goes into recovery mode and I write adb shell I get

"error: device not found". I'd really appreciate some help I've been trying this for a long time with no success. If it helps I'm running windows xp service pack 2. My phone is an htc panache on Mobilicity.

Thanks in advance
[myTouch 4G General] saranhai:
make sure USB debugging is on for the phone. settings/applications/developement

you know, you could find out the eMMC chip in terminal emulator on the phone too...

cat /sys/devices/platform/msm_sdcc.2/mmc_host/mmc0/mmc0:0001/name

just type this in any terminal emulator app.
[myTouch 4G General] abigscarytree:
Thanks for the quick response and your help. I got M4G2DE is that a good chip or a bad chip.
[myTouch 4G General] mwilliams05:
That is the bad chip.
[myTouch 4G General] saranhai:
bad one sorry :(
[myTouch 4G General] abigscarytree:
noooooooo does that mean I'll brick it If I try to root
[myTouch 4G General] saranhai:
not necessarily. Some people with the bad chip have flashed a ton and it still hasn't bricked yet, while others like me, only had it for a month before it died.
[myTouch 4G General] formeforfree:
I have bad Chip and screen. Rooted with permanent s-off. Flashed 10 roms and a radio. No probably yet. I used gfree and root sh I think. Also got Eng bootloader. Had phone for 4 months atleast. Wish me luck.
[myTouch 4G General] abigscarytree:
actually the only reason I want to root is for one app is there any way you can run a root app without rooting.
[myTouch 4G General] saranhai:
if you just want root to run one app, then just temp root using the VISIONary.apk. it will temp root your device, meaning you will lose root after every reboot. it's a little hassle i know, but if you don't need perm root, then don't.
[myTouch 4G General] mulletcutter:
i did a search i didnt find anybody else with this one.

SEM04G 2.16 GiB
[myTouch 4G General] abigscarytree:
is there any possibility visionary can brick your phone and does visionary only work on 2.2
[myTouch 4G General] saranhai:
visionary doesn't brick the phone, the process of S-off could, if you do it wrong and don't follow instructions. VISIONARY ONLY WORKS ON ANDROID 2.2, MT4G 2.3.4 OTA UPDATE WILL NOT BE ABLE TO BE ROOTED USING VISIONARY.APK.
[myTouch 4G General] abigscarytree:
how would I downgrade to 2.2 from 2.3.3 and can downgrading brick my phone. Also since downgrading wipes the phone is there any app that can backup everything on my phone.
[myTouch 4G General] saranhai:
........

really?

http://lmgtfy.com/?q=downgrade+mytouch+4g+to+2.2.1

donwgrading shouldn't brick your device, unless you don't follow instructions.

titanium backup is a good app for backing up.
[myTouch 4G General] u4david:
Serial numbers of badchips and good chips

Is there resources that will help us identify bad chips or good chips by using MFG serial number of the phone or other external Identification?Like color of the phones.that are more likely to have good chips and so on.

If not could you create database so we can start posting our SN's and create database based on phone command line outputs.
[myTouch 4G General] nao2003:
I have that as well... White mytouch4g
[myTouch 4G General] mulletcutter:
So ju$t two of us have that one?
[myTouch 4G General] badboi_zero:
I have that, too.
[myTouch 4G General] Mattypomp72:
Gutted, same issue after having a custom rom for 3 weeks got this error, confirm by adb log dumps and the suspect chip num;

[ 7.086151] mmcblk0: mmc0:0001 M4G2DE 2.10 GiB

Gonna have to try s-onning and back to HTC,

anyone tried a warranty claim after this isuue and s-offing?
[myTouch 4G General] saranhai:
my old phone had the failed eMMC chip... S-off and everything. i called tmobile customer service and acted dumb. about a week or so later, my replacement came :)

but that was with tmobile, not sure about HTC.
[myTouch 4G General] CoNsPiRiSiZe:
HTC call and say hey i read online that your having problems with the glaciers eMMC chip. Then I checked mine and its bad.. The. Actually dumb about it say i dont want a broken phone and they send you a new one. My friend did this. Oof course after I got and rooted mine and told him about the chip lol
[myTouch 4G General] wulfie66:
got a M4G2DE 2.10GiB Gfree here running like a champ, flashed several times, different radios, etc, not a single problem (knock on wood)
[myTouch 4G General] jr_718:
Same here, and still going strong... so what are you guys suggesting.. call htc and ask them for a new phone or what.. i mean am rooted, s=off, flash rom etc.. what can i do?
[myTouch 4G General] mulletcutter:
Keep truckin
[myTouch 4G General] jr_718:
Say what..
[myTouch 4G General] mulletcutter:
If ur phone is working fine, then just leave it. Ni need to call htc
[myTouch 4G General] jr_718:
Ooh yeah.. that was my plan. I got insurance anyway...thanks.
[myTouch 4G General] cbutt:
Same here... bad chip, good screen... what color?
[myTouch 4G General] wonderbread24:
I having the bad eMMC, and after reading every single reply on this topic have one question.

Is it worth the risk?

I want to enjoy having almost endless opportunities for my phone but once again, to those who've flashed with the bad eMMC, Is it worth the risk?
[myTouch 4G General] NatsuDragneell:
I would say yes u never. Know u mite. Have a good bad emmc
[myTouch 4G General] invasion2:
SEM04G 2.16GiB....bad chip.....
[myTouch 4G General] Skipjacks:
I had one of those on my last one. Didn't last even a full week.

The 2.16 threw me initially. But it was quadrupal confirmed as the size.
[myTouch 4G General] saranhai:
isn't SEMO4G the good chip...?
[myTouch 4G General] Skipjacks:
Theoretically.

They can still go bad.
[myTouch 4G General] 0.0:
mine is SEM04G. i used gfree to get S-Off, but visionary to perm root. so what option would that be in the poll? all seems fine so far. but how can the chip cause a problem with the rooting or flashing of roms on a phone?

also, what do people mean when having a "bad" screen? like the colors seem washed out?
[myTouch 4G General] saranhai:
Gfree
[myTouch 4G General] invasion2:
Oh lol wait!! I used gfree!!!!!!!!!!! Yay! Good chip :d
[myTouch 4G General] Phateless:
Gfree and screens have nothing to do with each other. Chips and screens also have no correlation. Do your reading people!!
[myTouch 4G General] Phateless:
Backwards. Good chip will root without gfree, bad chip needs gfree. Do your reading, I've said that 5 times within this thread.
[myTouch 4G General] Phateless:
See this. http://www.youtube.com/watch?v=GXMu-5KWA6s&feature=youtube_gdata_player
[myTouch 4G General] Phateless:
If you used gfree at all you used gfree.
[myTouch 4G General] The Archangel:
Someones a busy person, good to see active people none the less.

If I helped, give thanks, if you please.

Sent from my fist to your nuts, enjoy!
[myTouch 4G General] Phateless:
Just want to prevent the spread of misinformation.
[myTouch 4G General] hoatienii:
my eMMc serial. it's good or bad? thank you!
[myTouch 4G General] jr_718:
It's good.
[myTouch 4G General] dave.caldera:
Can anyone help with this...
[myTouch 4G General] Skipjacks:
I might be wrong, but try that command without the ' around mmc0001
[myTouch 4G General] jr_718:
Space ¦ grep