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A Warning to All G300 Owners! Please Read! [Hynix Flash Memory Problem]

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Poll: A Warning to All G300 Owners! Please Read! [Hynix Flash Memory Problem] (343 member(s) have cast votes)

Which Flash Memory do you have?

  1. Samsung (252 votes [73.47%])

    Percentage of vote: 73.47%

  2. Hynix (91 votes [26.53%])

    Percentage of vote: 26.53%

Answer this is your phone has died. If not, please select one of the last two options. Were you using the CM10.2 (Jelly Bean 4.3.1) or CM11 (KitKat) ROM? If you have never changed ROMs, click No.

  1. Yes (29 votes [10.58%])

    Percentage of vote: 10.58%

  2. No (40 votes [14.60%])

    Percentage of vote: 14.60%

  3. My Phone Has Not Died (But I have Hynix Memory) (36 votes [13.14%])

    Percentage of vote: 13.14%

  4. My Phone Has Not Died and I have Samsung Flash (158 votes [57.66%])

    Percentage of vote: 57.66%

  5. I don't know! (11 votes [4.01%])

    Percentage of vote: 4.01%

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#1
george109

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I am sure that everybody who has at least read the forum in the past few weeks has noticed a lot of G300s dying, and the (probable) cause for this is bad Hynix Flash Memory!

 

:huh: What is Flash or Flash Memory? Why is it so important? :unsure:

Spoiler

 

 

Some credit goes to tcpaulh, for his post here, posting the command on the forum!

Some credit also goes to Dazzozo, for actually posting the command on the IRC! ;)
A bit of extra credit goes to Dalyer, and the CyanogenMod wiki, for posting how to find the date of the eMMC chips.

 

By the way, you will need root for this.

To find out which memory you have, you should download this terminal emulator app from the play store.

Open it, and turn any sort of text prediction off, as this can cause really strange results (Touchpal, I am looking at you here!  :P)

Now type:

su

and press enter. A Superuser request should pop up. Accept it. 

 

Now, you will need to type

 cat /sys/class/block/mmcblk0/device/name

There will be 2 different outputs here:

 

The first is:

 SJS00M

If you have this output, phew! Your flash memory is safe.  :D  :D  This means you have Samsung flash, and you are at the end of the tutorial, and your G300 is safe. Please answer the poll. :) I would like to see how big the problem is! (Remember though, your G300 is not bulletproof because of this!)

 

 

 

 

The other output is:

 xinyh

If you have this output, you have Hynix memory your G300 is at risk!! :(  :(  

Now, please type this command:

cat /sys/class/block/mmcblk0/device/date

This command lets you see the date of manufacture of the chip. 

Please answer the poll, so I can see that you are one of the affected people. Also, press the end button on your keyboard, (it saves scrolling!) and reply in, with something like:

I have Hynix memory.

Date: (command output goes here)

Purchased in: (Your Country)

.

Now, Seriously! Back up EVERYTHING NOW!! DO NOT TURN OFF THE PHONE!

Get a micro external SD card, and download GOBackup from the play store.

Grant root.

Back up everything to the External SD card! (This means checking in settings, to make sure the backup directory is the SD Card).

When it is done, reboot, and try to get into CWM/TWRP and make a backup, again to the external SD card.

Then I would go into advanced or mounts and storage > mount USB storage, and copy everything from the internal SD card, if you use it. 

If you have Hynix memory, keep backing up! It could die at any time.  :huh:

There is no way to work out when it will die. The only thing that you can really do is be ready for it. It could happen in the next week, or in the next 10 years. :unsure:

On the up side. If you do have Hynix memory, it might not necessarily die. It could just be a bad batch of G300s or Memory.

 

If you still have warranty. (this is 2 years in the UK) you do not have to worry if it does die, as it should be free. Just send it off for service, users have reported that it does not matter if you are rooted or on a custom ROM.

 

If it has died, call Huawei on:

0844 800 6800

in the UK.

They are open from 9AM to 6PM, from Monday to Friday.

Make sure you have a note of the IMEI and the Serial Number before you call. This can be found under the battery.


Edited by george109, 02 January 2014 - 11:05 PM.

  • 16

Hello. I have an S4 now, and I hardly ever use MoDaCo now. 

Therefore you will receive no replies to any PMs

Please post in the forum instead. You will get more help there :)

:excl:A WARNING TO ALL G300 OWNERS! Please Read! (The Flash Memory Problem!) :excl:

Tutorial: How To (Officially) Unlock Your Bootloader! (The long way, but which definitely works)

Please, Do not use the HuaweiG300.com Tutorial on how to unlock your bootloader, it is better to unlock it officially with my tutorial!

Spoiler

My Device:

Huawei Ascend G300 (U8815) - Sold!

Samsung Galaxy S4 (Black) - The LTE Version - GT-I9505

(Ignore the links above (if there is one). It's a skimwords (advertising) link and nothing to do with me!)

The ROMS I have used:

Spoiler

Download Blink, a great app that controls the status LED on the G300!

Wait for 5 seconds and then click skip ad! Do not download anything in the ad window, that is not the app!

Did I help you?

If I did, Please press the rep_up1.png button, in the bottom right hand corner of my posts.

(If not, Press it anyway!)

If I really helped you, you could also donate to me. Thanks!  :) 


#2
tcpaulh

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Yay, credit for me. (Nobody will know I copied Daz's instructions from irc)

EDIT: I guess this is a good place to say we might benefit from a tester who has hynix memory. One with a kamikaze attitude to their G300 would be best :o

Might not be any more nightly builds till we get a tester

Edited by tcpaulh, 23 October 2013 - 01:39 AM.

  • 1

How To Provide Error Logs

 

There's a problem on KitKat with text wrap / reflow not working. Issue raised here. Please Star and Reply if you think it's a stupid regression


#3
george109

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Yay, credit for me. (Nobody will know I copied Daz's instructions from irc)

I Really need to read the IRC logs! *facepalm*

Anyway, I will add Dazzozo in too :)


  • 0

Hello. I have an S4 now, and I hardly ever use MoDaCo now. 

Therefore you will receive no replies to any PMs

Please post in the forum instead. You will get more help there :)

:excl:A WARNING TO ALL G300 OWNERS! Please Read! (The Flash Memory Problem!) :excl:

Tutorial: How To (Officially) Unlock Your Bootloader! (The long way, but which definitely works)

Please, Do not use the HuaweiG300.com Tutorial on how to unlock your bootloader, it is better to unlock it officially with my tutorial!

Spoiler

My Device:

Huawei Ascend G300 (U8815) - Sold!

Samsung Galaxy S4 (Black) - The LTE Version - GT-I9505

(Ignore the links above (if there is one). It's a skimwords (advertising) link and nothing to do with me!)

The ROMS I have used:

Spoiler

Download Blink, a great app that controls the status LED on the G300!

Wait for 5 seconds and then click skip ad! Do not download anything in the ad window, that is not the app!

Did I help you?

If I did, Please press the rep_up1.png button, in the bottom right hand corner of my posts.

(If not, Press it anyway!)

If I really helped you, you could also donate to me. Thanks!  :) 


#4
george109

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I have added a poll, this is to see how large the problem is.


Edited by george109, 22 October 2013 - 08:58 PM.

  • 0

Hello. I have an S4 now, and I hardly ever use MoDaCo now. 

Therefore you will receive no replies to any PMs

Please post in the forum instead. You will get more help there :)

:excl:A WARNING TO ALL G300 OWNERS! Please Read! (The Flash Memory Problem!) :excl:

Tutorial: How To (Officially) Unlock Your Bootloader! (The long way, but which definitely works)

Please, Do not use the HuaweiG300.com Tutorial on how to unlock your bootloader, it is better to unlock it officially with my tutorial!

Spoiler

My Device:

Huawei Ascend G300 (U8815) - Sold!

Samsung Galaxy S4 (Black) - The LTE Version - GT-I9505

(Ignore the links above (if there is one). It's a skimwords (advertising) link and nothing to do with me!)

The ROMS I have used:

Spoiler

Download Blink, a great app that controls the status LED on the G300!

Wait for 5 seconds and then click skip ad! Do not download anything in the ad window, that is not the app!

Did I help you?

If I did, Please press the rep_up1.png button, in the bottom right hand corner of my posts.

(If not, Press it anyway!)

If I really helped you, you could also donate to me. Thanks!  :) 


#5
kyan31

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Thanks George for posting this, luckily enough I have SJS00M flash memory so i should be alright. Thanks again.

  • 0

e2199c4dbb.png823c51b6b0.pngc3f6e04cdb.pngbc36a18046.pngead60d1912.pnge46a22ae54.png

 

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#6
drama20050202

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My G300 died last month , and guess why:( now i got another G300:d and thnx God i have the Samsung memory:d thnx for this:)


  • 0

#7
OmnioPT

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Samsung here!

- Vodafone Portugal

- Battery date: 11-04-2012

- Chip date: 04/2012

 

Thanks!


Edited by OmnioPT, 23 October 2013 - 09:06 PM.

  • 0

#8
DFMM

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got 4x g300's here all samsung flash
All UK from Vodafone store.
3 purchased around time phone released. 
1 purchased 11 months later (ICS already installed)


  • 0

#9
smweb

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Mine shows xinyh !!! Need to start the habit of backing up daily :(

Could those with the xinyh memory also post where and when they bought the phones, there could be a pattern here


When: Dec, 2012
Where: Huawei experience store, India

Edited by smweb, 23 October 2013 - 06:03 PM.

  • 0

#10
WELLIES5

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xinyh.    That's two of us then. Still running smoothly on10.2 20131018 experimental and keeping my fingers crossed.Thanks.


  • 0

#11
Thit Than

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mine is xinyh too :(


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#12
dalyer

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I wonder if there's any pattern to the Hynix devices - e.g. specific region or specific timeframe when they were bought?


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#13
Garnt

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Could those with the xinyh memory also post where and when they bought the phones, there could be a pattern here

  • 0

#14
Titas

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XINYH here - been on a different ROM recently;  was just about to try the latest.  Phew!  

 

Bought from Very UK 20/7/2012 


Edited by Titas, 23 October 2013 - 02:13 PM.

  • 0

#15
Pyntux

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I got my phone from VIP Serbia mobile provider, and have xinyh flash, but some other people got g300 from VIP too, but they have samsung flash... :(


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#16
dalyer

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I don't know if it helps but in addition to

 

cat /sys/class/block/mmcblk0/device/name

 

giving the name/type of device

 

cat /sys/class/block/mmcblk0/device/date

 

gives the date of manufacture (Edit: of the eMCP/eMMC device!).

 

http://wiki.cyanogen...eMMC_details.3F


Edited by dalyer, 23 October 2013 - 10:09 AM.

  • 1

#17
Thit Than

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Could those with the xinyh memory also post where and when they bought the phones, there could be a pattern here

well, i'm from thailand and i bought it at 27/07/2013. and seem it's the last one they sold.

 

I don't know if it helps but in addition to

 

cat /sys/class/block/mmcblk0/device/name

 

giving the name/type of device

 

cat /sys/class/block/mmcblk0/device/date

 

gives the date of manufacture.

 

http://wiki.cyanogen...eMMC_details.3F

that's return 05/2012.

 

PS. sorry for my bad english :P


  • 0

#18
Wellus

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sad face :/ if my device will die then i am without phone at all, nor do i have money... i guess if this one will die, then i am going to ignore huawei...

so device from Tele2 Lithuania
bought year ago

i was with stock, then switch over to some of dazzoz jb cm versions, switched over to lightning and now i want slim ics(i have some random nonsense thats why i need to switch and want to see how slim spins, i heard it's good one)

 

memory: xinyh

date: 08/2012

 

i hope that bad memory was just for specific month release


  • 0

#19
KaterM

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memory: SJS00M

date: 04/2012

 

U8815 bought in July 2012 from Yoigo - Spain


  • 0

#20
cryptoncore

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Both mine and my dads Ascend G300's are SJS00M.

Date bought: 15/08/2012

Both phones were bought at Sainsbury's.

 

For one of them (mine) the date of manufacture is 05/2012


Edited by cryptoncore, 23 October 2013 - 02:59 PM.

  • 0

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