Database Users

[ROOT]Samsung Galaxy S2 Wimax-Japan

Kinda new at this but decided to give it a shot. There are many variants of the SG2 and recently in Japan, AU Kddi released a beast...
As reported by gsmarena.com-"The Galaxy S II ISW11SC has a 4.7-inch Super AMOLED HD display with a resolution of 1280 x 720 pixels, 1.4GHz dual-core Qualcomm QSC6085 processor, 8 megapixel rear camera with 1080p video recording, 2 megapixel front camera, 16GB internal memory, expandable memory, Wi-Fi 802.11a/b/g/n, Bluetooth 3.0 and NFC."
But being released in Japan there isn't much support for rooting on this phone. Part of the problem is most of its support and forums are in Japanese. After post a thread question, user tora201 showed me the light. He came across a japanese website with a super simple root for this phone. I decided to post it for all of us to use it with some simple instructions. Thanks tora201 for the help. None of this work is mine and all credit goes to the respective creators.
ROOT SCH-ISW11SC Samsung Galaxy S2 Wimax:
1.) Head over to this blog page, http://blog.livedoor.jp/kz_gin/archives/cat_136988.html, and download the two .zip files towards the bottom. They have the labels change_recovery_ISW11SC.zip, and root_ISW11SC.zip...or just use the attachments below...lol
2.) Copy the .zip files to a sd card. tora201 suggested using just an extra one you may have around. Place the sd card in your phone.
3.) With your phone powered off hold Volume Up, Home Button, and the Power Button at the same time until the phone boots into recovery mode.
4.) Using the Volume buttons and the Home Button as a select button, choose the change_recovery.zip from the sd card. (Y'all should know how to navigate these types of menus well, will help those that don't)
5.) Reboot the phone. Now power off the phone again and repeat step 3. Your phone should boot in to Clockworkmod Recovery. The Recovery is now navigated via the touch screen not the keys or buttons!!
6.) Like before go, select install .zip from sd....find your sd card and select root_.zip..then reboot....you should now notice Super User in your App Drawer!!!
Download Root Checker Basic to verify root access. Reinstall your primary sd card and your good to go!!
The only trouble I ran into was when installing the root.zip, it would not detect my external sd card. Repeatedly said "No Files Found". So I restarted the phone, went into the File Explorer, tracked down the root.zip on my external sd card, copied it to my internal sd card. Reboot into Clockworkmod Recovery, tracked down the root.zip through the same steps above expect in my internal sd card. Worked with no charm. Im not a programmer or anything like that, so if you guys have any questions I'll try to answer them the best I can. Thanks and good luck...As always not responsible for any damage to your phone..Come on though, this one is too easy to screw up...lol
Credit to tora201 and kz_gin (of the Japanese blog)
Feel free to post some of your Quadrant Standard Scores...i got a high one unrooted...so just imagine what you root magic could do...

why the **** is samsung fragmating gs2 like sgs

Gooding looking out! I was about to go crazy a minute there... AU got me cause at first I thought I was getting a model similar to the stateside model. then I been searching a waiting for a month to find the way to root my phone. I'm going to try this procedure out.

just be warned you will loose NFC and au Market access after rooting....the NFC is still there but the NFC.apk for this specific model is not there and it will not accept the NFC.apk thats floating around here...and I'm sure you weren't using au market to start with unless you read japanese fluently...lol
EDIT: let me know how the rooting went...i need to be sure my instructions are clear enough....and actually work

Perfect... Phone is rooted....

I just picked up this phone today from auKddi.
Before I root, anyone other problems other than loosing NFC and au Market?
Thanks!
D.

no other problems that I've ran into...my phone has been running just fine since early feb....just very slow support for it seeing as it being a Japanese phone...i know there is a lot of support but i don't read or speak japanese forums...im constantly trying to find and look up things though....feel free to through anything out there you find...

thanks for the reply.
I will keep going over whatever Japanese posts/forums I can find (understand) and post any relevant information I find.
I still have not rooted as I want to be sure I don't need the NFC program first (I really don't need another market place.. sheesh.. google market, amazon market, samsung market, au market ...)
D.

Ok, I am still gathering info before I root (attempt) and came across this.
It may work in getting the au market working.
(Google translation to help those who do not read Kanji very well)
If anyone wants to give it a try, let me know.
Like I said, I have not rooted yet so I can't try it myself.
D.

ok...imma give this a try..and let you know whats up....

Nope no go...here are the screen captures...any info on the nfc?
Sent from my ISW11SC using XDA

I am very tempted in rooting the phone, as I wasn't provided with the correct SIM card (IC card) for using NFC (only discovered it recently that you need a specific SIM card).
Thanks anyway, it's a nice release for non-japanese speakers living in japan.

Hi mate, thanks for the hard work for putting this up and in English. I noticed the website you refer to now has a version 2 for root. do you know if its a better way of rooting and how it can be done. really appreciate the effort.
Sent from my ISW11SC using xda premium

hmmm i didnt know there was a new version of the root....ill take a look at it....maybe its something to fixes the au Market and NFC faults....
well from what i get its a root method meant for LB# build before the update that you get from the network when you first turn it on. i emailed the guy to the best i could using Google Translate ( yeah i know) so hopefully he answers back. his instructions talk about using odin and what not. a little too much if you ask me...let me know if you install an ICS Rom...i been searching for answers on which ROM/baseband/kernel etc to use but to no luck..

I think this phone seriously needs ics . It would solve the menu lagging as its built for dual core unlike gingerbread. I don't think I can port any ROM because I don't have the necessary know how. I'm just praying .
Sent from my ISW11SC using xda premium

well checked with the v2 root and all it is, is another way to root the device. i was told some people were having trouble with v2 so they came up with the one that is used in the guide...im seriously thinking of flashing a ROM from the Asian area built for the GS2 LTE...i dont want to lose signal and wimax function though...so i got to do more research..i think the SG2 LTE is the closest to our model

strange thing....theres an update today:for improved performance....40 mb ota but i cant install it..i guess because of the root....so im trying to find it manually and install using cwm...but cant locate it in the system...you guys come across it yet?

I downloaded but havent seen any difference other than my wifi reception has improved from my router.
this is my info on my phone does anyone know if i can still root this phone with the method posted on XDA?

image didnt show up sooooo i have no idea what your working with...needs them specs

Here we go
Sent from my ISW11SC using xda premium

Older NOOB

Hello Folks!
I guess my question will make me sound dumber than a box of rocks, but here goes. A bit of history before I make myself an idiot. I've only been fooling with computers and these new tech. machines for about a year and a half now and for the most part been having an enjoyable time. I'm 70 years old and I'm not the sharpest crayon in the box anymore, time has dulled my tip a bit. I've been given a Nook Tablet as a Christmas gift by 2 of my grandsons, I intend to change the Android on it to the Ice Cream version but before I do I want to practice on something else first. So I bought a used Nook Color from a lady at church for $50 and I want to try and make a SD card to run the new Android from. The reason I want to use SD card is that there are over 200 books on the Nook and I would like to eventually read a lot of them. I guess I'm just greedy.
I've spent most of the weekend reading this forum information, but unfortunately the more I read the more confused I get. There is a tremendous amount of information to try and digest here and sometimes some of it seems to contradict itself. What are the different types of modified Androids that can be used? Can the Andriod that is installed on the SD card be modified so that more applications can be stored on it? How difficult is it to install the software that allows you to speed up the Nooks processor, that is, can a raw noob do it?
I'm sorry if I've yacked too much. I'm still learning how to correctly ask the questions.

Hey, knock off the old man stuff. I am 67 and my crayon tip is still sharp (although there are some here that would disagree with that, LOL). This nook color stuff is not that hard. I would recommend putting cm7 on sd first to get your feet wet. Then if you feel like experimenting move on to cm9. You can get the rom at cyanogenmod.com (for the encore - Nook Color). I recommend 7.2 RC3. It comes already rooted and overclocked so you can speed it up. And it has plenty of room for apps if you put it on a 4Gb card or larger. If you can afford it, I recommend 16GB (and Sandisk, class 4). Follow this guide to set it up:
http://forum.xda-developers.com/showthread.php?p=12240928
But look at my tips thread linked in my signature to get an updated image to use instead of the one in the thread above. Also read all of section B in my tips, as it all applies to the sd installation. If you need more help, just come back here.

GrampaBear said:
Hello Folks!
I guess my question will make me sound dumber than a box of rocks, but here goes. A bit of history before I make myself an idiot. I've only been fooling with computers and these new tech. machines for about a year and a half now and for the most part been having an enjoyable time. I'm 70 years old and I'm not the sharpest crayon in the box anymore, time has dulled my tip a bit. I've been given a Nook Tablet as a Christmas gift by 2 of my grandsons, I intend to change the Android on it to the Ice Cream version but before I do I want to practice on something else first. So I bought a used Nook Color from a lady at church for $50 and I want to try and make a SD card to run the new Android from. The reason I want to use SD card is that there are over 200 books on the Nook and I would like to eventually read a lot of them. I guess I'm just greedy.
I've spent most of the weekend reading this forum information, but unfortunately the more I read the more confused I get. There is a tremendous amount of information to try and digest here and sometimes some of it seems to contradict itself. What are the different types of modified Androids that can be used? Can the Andriod that is installed on the SD card be modified so that more applications can be stored on it? How difficult is it to install the software that allows you to speed up the Nooks processor, that is, can a raw noob do it?
I'm sorry if I've yacked too much. I'm still learning how to correctly ask the questions.
Click to expand...
Click to collapse
And in keeping with the older guy thread concept (66), you're talking about two different devices, the Nook Tablet (NT) and the Nook Color (NC). The newer NT is much more difficult to deal with than the older NC. It's not as straightforward to install anything on the NT as it is for the NC. Also try to differentiate between the device hardware and the operating system software. The software will get the most out of a particular devices' hardware. The NC's processor is single core; the NT is dual core. The Ice Cream Sandwich (ICS) Android operating system applications are pretty much the same between the two devices, but the operating system interface between the applications and the hardware (the kernel) is different, so overclocking, over/undervolting, etc. will be different, too.
Just keep reading; that's how to sharpen the tip. It's never permanently dull until everything else is.

shumash said:
And in keeping with the older guy thread concept (66), you're talking about two different devices, the Nook Tablet (NT) and the Nook Color (NC). The newer NT is much more difficult to deal with than the older NC. It's not as straightforward to install anything on the NT as it is for the NC. Also try to differentiate between the device hardware and the operating system software. The software will get the most out of a particular devices' hardware. The NC's processor is single core; the NT is dual core. The Ice Cream Sandwich (ICS) Android operating system applications are pretty much the same between the two devices, but the operating system interface between the applications and the hardware (the kernel) is different, so overclocking, over/undervolting, etc. will be different, too.
Just keep reading; that's how to sharpen the tip. It's never permanently dull until everything else is.
Click to expand...
Click to collapse
You're right of course. I was talking about how to update his NC. I also have an NT and it is much more difficult to deal with on modding.
Actually, after playing with the rooted 1.4.2 stock NT, I see no reason to move to CM yet on it (BT is the only thing missing on stock), even though I have CM7/CM9 on dual boot SD. After CM gets more stable on the NT, maybe.
Sent from my Nook Color running ICS and Tapatalk

Old age
Gentlemen,
Thanks for the replies. I don't feel old most of the time, just when I have some of the youngsters whizzing past me. Computers, smart cell phones, and Nooks are fairly new to me, never touched one until after my wife passed a year and a half ago. Now I need one to keep in touch with my family (4 kids, 12 grandkids(and 3 more on the way), and 4 greatgrand kids (and 2 more coming).
Due to a accident last fall the old brain sometimes has a bit of a hard time comprehending things now and then, so I get a bit frustrated and I may ask questions that seem to be a repeat. Hope you all can forgive that.
Thanks!

The tablet my grandsons gave me is a Lenovo A1 not a Nook tablet. It is running Android 2.3 and I want to upgrade to Ice Cream Sandwich when I'm confident enough in my abilities.

Well done, gentlemen.
These two will have you building your own Android OS before you're done, GrampaBear.

GrampaBear said:
The tablet my grandsons gave me is a Lenovo A1 not a Nook tablet. It is running Android 2.3 and I want to upgrade to Ice Cream Sandwich when I'm confident enough in my abilities.
Click to expand...
Click to collapse
You might want to check out these for information on the Lenovo Ideapad A1:
http://androidforums.com/lenovo-ideapad-a1/
http://forum.xda-developers.com/showthread.php?t=1355319
There's very little activity for this device on xdadevelopers, and what we know is primarily for the Nook Color.

Well, I started the process of making an SD card with Android on it. I am now thoroughly convinced I am near as dumb as a box of rocks. I download the agnostic sd card image and the win32imager. I didn't realise I needed to uncompress the files ( this was a first for me, never had to do it before ). I finally figured out I needed WinZip and I downloaded the trial version and ran the program. I took a old Kingston 4 GB class4 micro sd card (I have ordered a Sandisk from newegg but didn't want to wait to try) and formatted it to fat32 with a sd formatting program. I then ran Winimage (with my fingers crossed for I was not sure of what I was doing) and I think I have the image on the sd card, at least when I look at the card it windows it says boot on the sd icon. I went to the site where the C7 images are kept, but could not get one to download ( this was around 11 pm last night ). One problem I have is that I have no idea what I'm looking for when I pick a file. Could you tell me which one I should be using? It says I should write the image to the card, put the card in the nook and boot it. OK! I'll give that a shot, but how exactly do I get the Nook to boot off the sd card and how exactly does the Nook know what to do with the program? Will this mess up the Nook and the programs on it?
I knew that this would be a project, but after 12 hours of reading and trying I've become a bit frustrated. Maybe someone would take on a project and write a forum called The Big Dummy's Guide to Installing CM7 to a SD card and do a step by step instruction that tells us dummys what we should be seeing as we do this.

Funny you should ask about the dummies guide to SD installs. Taosaur just gave me a link to his here:
http://taosaur.blogspot.com/2011/09/running-cyanogenmod-7-from-sd-nook.html
He gives links for the CM7 files. Pick the CM 7.2 RC3.
Once you get the SD set up right and the CM zip on it, just put in your nook and boot. Everything is automatic and does not harm your stock install at all.
Sent from my Nook Color running ICS and Tapatalk

Thanks for answering my post. Looks like I'll be starting all over with the process again later this evening. You must have been doing this work for quite a while with the knowledge you have.
Well, for now I'm taking my 6 1/2 year old great-granddaughter, a couple of fishin poles, a can of worms, and we're walking down to the pond to catch us some bluegills for dinner. Need to have a little grandpa fun and let the ole brain relax for a bit.

GrampaBear said:
Well, I started the process of making an SD card with Android on it. I am now thoroughly convinced I am near as dumb as a box of rocks. I download the agnostic sd card image and the win32imager. I didn't realise I needed to uncompress the files ( this was a first for me, never had to do it before ). I finally figured out I needed WinZip and I downloaded the trial version and ran the program. I took a old Kingston 4 GB class4 micro sd card (I have ordered a Sandisk from newegg but didn't want to wait to try) and formatted it to fat32 with a sd formatting program. I then ran Winimage (with my fingers crossed for I was not sure of what I was doing) and I think I have the image on the sd card, at least when I look at the card it windows it says boot on the sd icon. I went to the site where the C7 images are kept, but could not get one to download ( this was around 11 pm last night ). One problem I have is that I have no idea what I'm looking for when I pick a file. Could you tell me which one I should be using? It says I should write the image to the card, put the card in the nook and boot it. OK! I'll give that a shot, but how exactly do I get the Nook to boot off the sd card and how exactly does the Nook know what to do with the program? Will this mess up the Nook and the programs on it?
I knew that this would be a project, but after 12 hours of reading and trying I've become a bit frustrated. Maybe someone would take on a project and write a forum called The Big Dummy's Guide to Installing CM7 to a SD card and do a step by step instruction that tells us dummys what we should be seeing as we do this.
Click to expand...
Click to collapse
Leapinlar's post will answer your questions, but here's a few things to watch for that may concern you:
1. It takes a while for the initial install, and you may see a black screen without any indication of activity. Don't panic! If it lasts more than 20 minutes or so, turn the Nook off, pull the sdcard out, and start again. Don't be afraid to redo everything.
2. The first time it successfully boots into Android, you will see the introductory splash screen for what seems an inordinately long time. It's setting up files and processes so just let it run. Once again, if it takes more that 20 minutes or so, there's most likely some problem.
2. The Kingston card may be sloooow, so my comment above is even more possible. Because the Kingston card is so slow, when you finally boot into Android on it, you may think that the system is too slow or error-prone to run on an sdcard. You may get popups during boot up, when you're running programs, or when its just sitting there, saying something to the effect that so and so program has a problem or had a fault or whatever, and asking you to wait or "force close" (FC). This is probably caused by the card. Your Sandisk card will generally not have those problems (I've been running for over a year on an 8gb Sandisk card with no problems and very snappy response).

Thank you
Shumash,
Thank you for the information. I tried my first try at making a card tonight, it appears to be a no go. Left the Nook alone for an hour and 15 minutes with nothing apparently happening. I will reformat the card and try again tomorrow. I want to thank all who have written to help me along. I know what a pain in the kester having to work with absolute beginners can be.

GrampaBear said:
Shumash,
Thank you for the information. I tried my first try at making a card tonight, it appears to be a no go. Left the Nook alone for an hour and 15 minutes with nothing apparently happening. I will reformat the card and try again tomorrow. I want to thank all who have written to help me along. I know what a pain in the kester having to work with absolute beginners can be.
Click to expand...
Click to collapse
I see you used winimage to burn. Do not use 'write disk' to burn it. Use 'Restore Virtual Disk Image to physical drive' in the same menu. That's why I recommended win32diskimager. It is simpler to use for noobs.
Sent from my Nook Color running ICS and Tapatalk

Shumash,
I did use win32diskimager but I apparently did something wrongin the process. I will try again tomorrow it's late and I'm a bit tired.One thing that I will be doing also is trying to learn as much about Android as I can, though it may need to be in a bit simplified format. If anyone can suggest available information this old geezer will appreciate any guides to it.

I finally did it!
It took me 6 trys and I'm not sure what I did right this time, but I finally had success. The first 5 trys all I would get on the screen were 3 lines going across the screen about 40% of the way up and nothing else. The last time it booted and took a bit of time probably 12 - 15 minutes working and then shut itself down. I was thinking it was another failure and held the power button down for a few seconds to restart and Bingo! up came the Android window. I messed around a bit and set up the wireless and pulled up the internet. I LIKE IT!!
It is a bit slow and I'm assuming the Sandisk card will fix that when it finally arrives. It didn't freeze up or anything just ran a bit slow. The Lenovo A1 that my grandsons gave me is always locking up.
The only other thing that I have a worry about is the micro sd card reader in the Nook. I did have a pretty hard time getting the card in and out of the reader slot. I've labored with my hands all of my life and I have developed rather thick and calloused fingers and a bit of arthritis doesn't help either. I can not physically fit the tip of my finger into the little open loop area for the SD card reader. I had to use a tweezer from my fly tying kit to insert and remove the card from the Nook. After I get this type of card down pat I'd like to see if there is a way to leave the card in all of the time and be able to boot from the card or the nook reader software.
THANKS AGAIN! I wouldn't have succeeded without all of you gentlemens help.
While I was finishing typing this message my 13 year old grandson has been fooling around with the Android on the Nook. He said to tell you, that you all are AWESOME!

GrampaBear said:
Shumash,
I did use win32diskimager but I apparently did something wrongin the process. I will try again tomorrow it's late and I'm a bit tired.One thing that I will be doing also is trying to learn as much about Android as I can, though it may need to be in a bit simplified format. If anyone can suggest available information this old geezer will appreciate any guides to it.
Click to expand...
Click to collapse
If you're using windiskimager, getting everything straight can be a bit confusing. Make sure that you're doing the following four steps on your PC, not the Nook!
1. To the right of the box that says "Image File", there is a blue folder picture. Click on it and select the image file. It should be something like "generic-sdcard.img". It's easiest if the image file is in the same directory/folder as the win32diskimager software.
2. To the right of the blue folder looking picture is the selection box for the location where this image will be written. It says "Device" right above it. If it is the wrong drive letter, click on the arrow at the right of the box. Select the letter of the sdcard. Use a file manager or windows explorer to find out which drive letter the sdcard is. Make absolutely sure you know which drive it is!
3. After you have properly selected the image file and the correct drive letter, click "write" and wait for it to complete.
4. After the image has been written, you will have to put the CM7 (Gingerbread) or CM9 (ICS) flashable zip on the sdcard in its root directory (called "/boot" in a file manager or windows explorer). Copy the one you want onto the sdcard.
Once the above is done, remove the sdcard from the PC and put it in your Nook. Boot the Nook up, and it will do everything else automatically.

GrampaBear said:
The only other thing that I have a worry about is the micro sd card reader in the Nook. I did have a pretty hard time getting the card in and out of the reader slot. I've labored with my hands all of my life and I have developed rather thick and calloused fingers and a bit of arthritis doesn't help either. I can not physically fit the tip of my finger into the little open loop area for the SD card reader. I had to use a tweezer from my fly tying kit to insert and remove the card from the Nook. After I get this type of card down pat I'd like to see if there is a way to leave the card in all of the time and be able to boot from the card or the nook reader software.
Click to expand...
Click to collapse
It's funny you should mention old hands and micro chips. I have always had a hard time with the chip and that darned slot. Yesterday I was changing the chip and it popped out. I was sitting in my big recliner, you know the kind all old folks have, LOL. Anyway, the chip went down the crack in the chair. I could not find it. I finally turned the chair on it's side and shook it. It came tumbling out. LOL.
So you will be glad to hear there is a way to set up your stock so that you can use the same SDcard. The only complication is your stock must be rooted first. But that is simple to do. But maybe you want wait on that till you are more confident. Once it is rooted you can look at my tips thread, item B3, and I tell you how to set up stock to use the same SD so you don't have to keep changing cards. There is another method of setting it up without rooting first, but it is more complex to do. If you want me to reference that thread, let me know.

Leapinlar,
I know what you mean about the old folks and recliner thing. I have a big old style chair with a foot stool that my wife bought me at a garage sale 38 years ago. It was well over 20 years old when she bought it. She re-upholstered it and made it into the most comfortable chair for a large man ever. I'm kinda like Archie Bunker with that chair, it's my chair and you don't sit in it unless I offer it to you.
I appreciate all the help you all have given me, this is all new to me and sometimes I get to feeling a bit flumoxed. I'm having a bit of a problem getting the Android gapps program to work at the moment. Think I may be copying it to the wrong spot, but Windows only seems to show me one spot to copy to. I'll get it figured out it'll just take time. It may be a bit before I feel brave enough to root the Nook.
Still waiting for the Sandisk card to arrive. The Kingston card seems to work but is really slow at times.

You're copying it right. As you turn the nook on with the card in the slot, hold down the n key and choose to boot into the SD recovery partition.
Sent from my NookColor using XDA

Nvidia Shield TV Pro, a Nightmare !

I got this thinking I am buying the best machine available for streaming and from day once , have been plagued by problems.
First on opening the unit, the AC adapter was faulty. It turned out to be a piece of plastic stuck between the contacts.
Anyway I solved that problem on my own as shipper refused to entertain any claims outside the USA.
Then when it finally got going, I noticed most apps had loading circles going around, and were waiting to download. Tried everything possible and they would not move ahead . Finally cleared cache and data on the Google Play Store app and the app started downloading for precisely one application then it stopped and again same circling. I had to clear data on the Play store app every time to update each and every app on the machine.
Then i couldnt find my favorite apps in the app store. Turns out , Shield does not support. Ok, no problem, i said lets compromise and move on.
Downloaded MX Player Pro from the Play Store and sat down to watch a 1080p movie on the USB drive and again the loading circle popped up on the screen. Buffering on a 1080p file from a usb 3.0 flash drive !!! I copied the file onto the HDD and again the same problem. I had no idea how to watch this movie, BTW had watched it a night before perfectly on my Alphawise H96 Pro+.
Then one by one all the apps started crashing.
I decided to do a factory restore which lasted 2,5 hours. After restore, same problem, all apps crashing.
I do not have anything connected to the Shield , no usb drive. no air mouse, nothing. Both ports are empty.
The surprising thing is even Google play store crashes , also the Lean back Launcher and the system crashes.
I called up Nvida support and they say we do not support the Shield as you are not in the USA. Guys, even the chinese from Aliexpress support you and give a replacement if item is faulty. All they ask is a video showing the problem. In todays times, there are going to be non us customers buying from the Usa, you need to support them also.
Stuck with a Lemon.
Cannot even sell it off as whoever buys it from me will throw it back in my face. The dam thing is just a few days old.
Havent slept three nights, trying to solve the problem, got finally tired and have connected the Alphawise to the TV and Shield goes back into the box
There are lots of other people complaining about similar issues but no fixes from Nvidia ?
If someone can please suggest something which I can try, I will be highly obliged. Else I am stuck with a $300 paper weight.
I did a Full Reset (2.5 hours) once and a Fast reset , hoping it would solve the problem. But no luck.
Please help, someone, please.

Wow, that sounds like a whole lotta suck.
Sorry to hear you had such hardship.
My Pro model had the blurry Recommendations section, which was a symptom of the faulty harddisk, for ages (before I knew about the mass RMA they had) and, one day, the Shield stopped responding to input, even from the capacitive power button on the device itself.
So I pulled the plug but it wouldn't turn back on afterwards.
I applied for a replacement here:
https://nvidia.custhelp.com/app/home
Where'd you get yours?
I'd purchased mine as soon as it was released through the US Amazon - I couldn't wait the extra month or so for it to be released in Europe
Despite this, they processed the replacement. I sent it off to the Netherlands, if I recall correctly, and they returned the refurbished unit shortly afterwards, which has been working fine ever since; all the useless recommendations load quickly and there's no slow down or stuttering like I'd experienced before. I also got a new controller in the box with it and an EU plug. :good:
Anyways, my point is that it shouldn't matter where it was purchased. Try that link and see if you can't get it sorted.
I wish you the best!

DreadfulDrummer said:
Wow, that sounds like a whole lotta suck.
Sorry to hear you had such hardship.
My Pro model had the blurry Recommendations section, which was a symptom of the faulty harddisk, for ages (before I knew about the mass RMA they had) and, one day, the Shield stopped responding to input, even from the capacitive power button on the device itself.
So I pulled the plug but it wouldn't turn back on afterwards.
I applied for a replacement here:
https://nvidia.custhelp.com/app/home
Where'd you get yours?
I'd purchased mine as soon as it was released through the US Amazon - I couldn't wait the extra month or so for it to be released in Europe
Despite this, they processed the replacement. I sent it off to the Netherlands, if I recall correctly, and they returned the refurbished unit shortly afterwards, which has been working fine ever since; all the useless recommendations load quickly and there's no slow down or stuttering like I'd experienced before. I also got a new controller in the box with it and an EU plug. :good:
Anyways, my point is that it shouldn't matter where it was purchased. Try that link and see if you can't get it sorted.
I wish you the best!
Click to expand...
Click to collapse
I have the 2017 shield pro. and all though I wouldn't say it has been a nightmare, it hasn't been without its problems; such as apps randomly not responding with a message saying close the app or wait...slow down of apps opening at all to include settings not opening...streaming apps to include Netflix not playing or simply force closing...even Leanback Launcher stopping with the message Leanback Launcher has stopped...close or wait....I finally bit the bullet after posting on this forum and getting no response and did a wipe of data and dalvic from TWRP and re-flashed the 6.1 or 6.2 firmware. It seems to be running smooth so far. Got my shield from amazon. wouldn't expect this many problems from a $300 device that claims to be the best on the market. When it works without problems it is a great device!
Hope you get it sorted out. If nothing else works, it may be worth it to fastboot boot TWRP if you have an unlocked bootloader...wipe data and dalvic and install the 6.1 firmware update.

Real sorry to here you had so many problems Mate. Hope they sort it for you ....But if they fail to deliver (which they really should not, Take no excuses from them ,Polite but firm)
You have the option to get a Donner clone from a thread based in these forums ,along with further help in the threads below.
https://forum.xda-developers.com/shield-tv/development/nvidia-shield-tv-ssd-t3402580
https://forum.xda-developers.com/shield-tv/general/guide-migrate-to-ssd-hdd-size-satv-pro-t3440195
I would almost Guarantee that it is your Hard drive at fault ...as your descriptive clearly points to this as the culprit.
I have read a number of post and comments in them threads ,and it is invaluable ... I am Dam sure many will bend over backwards to help you out.
Real shame the same can not be said concerning NVIDIA ...Hopefully they see your Dilemmas and respond dutifully.
Good Luck!
Best Regards,

Advice on updating Nook Color

Hi guys,
I’m looking some advice please re my Nook Color which I’ve dug out of retirement !
The last time I did any work on it was back in 2011, and it’s currently on B & N Software version 1.1.0.
It was rooted way back then, but I’ve now no idea what version of Android (CMod) is on it and was wondering how I could check this please ? (ROM Manager 3.0.0.7 is installed if that’s any help ?)
I reason I’m revisiting the forum is that I’ve recently “purchased” a load of free Kindle books from Amazon, but as the version of the app on the Nook Color is “Kindle for Android 2.0.4.103870164” they won’t sync/connect .
Is it perhaps possible for me to somehow download these ebooks onto a PC (or phone) and copy them to the “/sdcard/Kindle” directory on the SD Card in the Nook ?
Or should I try and put a more recent CM version on the nook, and if so which one, and which guide would you suggest ?
Grateful for any assistance please.
Best regards,
Ric

When you’re in the software try going to Settings and look for About.
I believe you can see what o/s you’re running in there.
I have a Nook Color that I bought the first day it came out. I rooted it and installed CM on it. I believe it was something like CM5.6. But, that’s off the top of my head.
Unfortunately that horrendously designed charging cable busted once too many do I can’t even use mi e anymore. (I’ve moved on to a stock Asus Zenpad z8).
You might want to keep an eye on B&N to see if they have another trade—in promo nearer to the holidays. They were giving $100 off at one time AND the local shop was even letting people keep their old tablets!!
Sent from my iPhone using Tapatalk

Yuehoo YH-605 (7inch 8core Allwinner T8, 4GB/32GB) root, improvements etc

Hello to the community.
I bought this unit 5 days ago, for the simple reason that it was the only unit with 4GB of RAM for under 100 euros! I bought it from banggood using a coupon code I saw in a youtube video.
I haven't installed it in my car yet, I've got it on my desk with power applied and keep playing with it.
I searched many forums to find any information I could about it and ways to improve it, so I decided to start a new thread here and keep all information together.
HARDWARE
7inch LCD, 2 DIN
8core Allwinner T8
4GB RAM
32GB ROM
STM32 MCU
Android 8.1 (NOT 9.0 as falsely stated)
HIDDEN "FACTORY SETTINGS" MENU
Settings - System - About Devices
Alternately tap on the Kernel Version - OS Version (3 times)
Be careful when playing around this engineering menu. Many people, including myself, pressed some button that shouldn't be pressed and ended up with a screen that didn't respond correctly to touches.
If you end up in a similar situation, don't panic and follow this simple procedure:
Connect a USB mouse.
Enter the hidden engineering menu.
Go to the "Other" tab. Find "Touch Learning":
Step1:Screen learning - you adjust the touch ... =>
Step2:Key learning - press "RESET" => touch the "Power" button and select Power at the left short touch = = OK ... then the "Back" button then "Volume +" and "Volume -" => now press "Save & exit" and you're done.
PIN when needed: 666666
The "Developer Options" menu cannot be unlocked like in any other Android device.
In order to have access to this menu, simply install QuickShortcutMaker from the Play Store and find it on the menu. Don't forget to press the little star on the right to move it on Favorites.
I hope there are other users of this unit out there and get this tread going. Next post will be about rooting this device!
Have fun.

ROOTING THE YUEHOO YH-605
DISCLAIMER!!!!!
A. Dealing with firmware modifications and "upgrades", always involves a certain amount of risk bricking your device! DON'T attempt anything if you don't fully understand this and you are not prepared to end up with a "dead" device.
I'm not responsible for anything you try, don't come whining afterwards to me if anything bad happens, you accept full responsibility for your acts.
B. Having said that, I consider this procedure pretty safe. We'll be using the "update procedure" to install new firmware from an SD card. If something goes wrong, you can try to install the original unmodded firmware and go back to a working device.
C. This procedure was executed by me to my own YH-605b, with the following characteristics:
Hardware Information: 8-Core AllWinner - ROM 32GB - DDR3 4GB - 1024x600 - d2
Kernel Version: Linux 4.4.89 - Wed Aug 28 16:11:04 CST 2019
OS Version: KC1D01I1-O49-3.0.4.3.5-IVT-20190828
MCU Version: STM32-20190828-11-KC2-30
If anything is different in yours, please consider if you want to try this, even more
D. I received my unit 5 days ago. I haven't installed it to my car yet. It is sitting on my desk with just power applied to it. This means that no sound, steering wheel controls, or any other car related stuff have been tested. I'm just testing it as an Android device and everything seems to work fine. This also means that the next one who tries the procedure, has to test everything afterwards inside the car and kindly return feedback! I'm not planning in installing this unit in my car any time soon, to tell you the truth I get more pleasure in "playing" with it on my desk, than having it entertaining me in my car Unfortunately, we are living in strange times and right now it helps me kill my time and learn stuff.
E. After the "upgrade", everything will be factory reset. Self-explanatory, just have this in mind, any changes you had made or apps installed will be gone.
F. As far as I can understand, iGO is installed by hand on the device, after manufacturing, during final testing. This means that after the "upgrade", the application will not be there. If you want to keep it, just copy the iGO folder to an SD before the procedure and copy it back and reinstall the application afterwards. As far as I can see, everything else will be there. If something is missing, please report back so everybody will know.
By the way, if anyone could send me the iGO folder, would be nice
G. From my research, people kept telling that the way to do an upgrade is by using the "hidden" internal SD card slot. That's what I used, but by mistake at some point I realized that the external works too! So, you should be able to use the SD card slot on the front face left for the procedure, if this does not work, then be prepared to dismantle the device and use the internal one. Warranty void alert!
PROCEDURE!!!!!
Funny enough, the procedure will be a LOT shorter that the disclaimer! I'll try to keep things as simple as they can be...
1. You will need a microSD card, at least 4GB. Maybe it can work with a USB flash drive, but I didn't have the time to test it.
2. Download the zip file, using the following link.
https://mega.nz/#!YRZl1ADC!JGyl9Occ6CMmxxftkUDOyFxXSn2Fh8kTVI7XLn6qrPY
The file contains the already rooted image of the original firmware, done by me. Also, the PhoenixCard folder which is needed to prepare the SD card, a short video of how to use PhoenixCard (not done by me), and the Magisk Manager application for the device.
3. Extract everything, best to your root directory, e.g. C:\ .
4. Watch the short video. Execute the PhoenixCard application and "burn" the image to the SD card. Give it time, it will seem that it froze but eventually it will finish. Safely unplug the SD card from the computer.
5. Insert the SD card on the device and boot it up. There should be a progress bar if everything is going OK. Wait for it to finish, there should be a brief message like, "CARD OK". The screen then will start to change colors from gray to black and flickering. Don't worry, give it a minute or two and then remove power.
6. Remove the SD card and power it up. If everything went well, it should boot up to factory restored Android. Connect to wifi and enter your Google Play credentials, as usual.
7. Copy from the computer to your SD card, the Magisk Manager apk. Insert the SD card to the device and using ES File Explorer install the application, following the suggested steps.
8. Open Magisk Manager and follow the suggested step. The application should do its magic, reboot and you are done! You've finally got a rooted device
For anyone that tries this, please give feedback, it's essential in order to help others. If anything goes wrong, don't panic and explain what happened, I'll try to help.
If something goes very wrong, try to burn the SD card with the original image provided and "upgrade" it with this.
Original firmware:
https://mega.nz/#!9JYFGYCI!QBHeC1c3sV4Dap0iQlZUyTE8eEld7w86vjmZqwMWeok
If someone is interested in the procedure of patching the original firmware, please tell me and I will prepare a short tutorial.
Have fun

I love this unit!
Hi, by any chance when you "open" the unit did you see anyway to add external mic. Because the one in the screen is very poor quality.... Also tried any car launcher like FCC that works with Bluetooth? It is very hard to find people with technical knowledge on this....

SimonC78 said:
Hi, by any chance when you "open" the unit did you see anyway to add external mic. Because the one in the screen is very poor quality.... Also tried any car launcher like FCC that works with Bluetooth? It is very hard to find people with technical knowledge on this....
Click to expand...
Click to collapse
Unfortunately, I reassembled the unit in order not to overheat too much, due to its poor design. I didn't see anything, but perhaps because I wasn't looking for an external mic connector
Maybe you could use an external USB one, just a suggestion.
Also, I didn't have time to play with other car launchers yet, when I do I will report back.
Have fun.

Hello my friend!
First of all my congratulations on the topic, it is the first I see about the YUEHOO YH-605b Head Unit.
I am from Brazil and I acquired this head unit recently, but unfortunately my experience with it was not good. Here are some bugs I found and some things I didn't like:
1. The main screen is horrible, very different from my previous head unit with Android Oreo 8.1, what I liked most about it was that the widgets already appeared on the main screen, on this device the main screen is black and without any widget from apps
2. The music and videos freeze out of nowhere during playback
3. I cannot synchronize my phone's phonebook with the device's phonebook, the message appears synchronizing... remains forever and does not sync any contacts
4. The image on the reverse camera is horrible, the same camera had a very good image on my old head unit.
5. The touch screen is terrible when you touch the corners of the screen.
My question to you would be these:
* Could this root procedure done by you fix some of these bugs?
* Is there a firmware update to fix these problems?
* Can you tell me if is possible to update the operating system of this unit to Android 10 or downgrade to Android 8.1?
I look forward to your responses.

Super
Well have done it and all went very well.
Phoenix Card can be a little flakey but apart from that really reall good.
Thanks a lot been hopeing for this for a while.
I would be intersted in the processe so if you do a little guide that would be super.
And again thanks a million.
Jon

Hi,
I also have this headunit, and have noticed it is unstable when trying to run more than 1 app simultaneously eg launch Igo then try to operate a split screen app, it crashes before even selecting another app.
I have checked with some fake memory apps and it appears to only have 2gb memory.
2gb should be sufficient to run simultaneous apps without crashing to launcher, is it possible to fix the incorrect memory amount (and android version) with root?
The launcher also seems to be memory heavy, it appears to take nearly 1gb on its own. I assume all the apps etc on the first page are a part of the launcher, so replacing it may not be possible without loosing functions.
I will upload the igo folder when i get a chance, it's a shade under 8gb so will take me a couple of days!
I'll leave a link when it's done.
Dave

obfripper said:
Hi,
I also have this headunit, and have noticed it is unstable when trying to run more than 1 app simultaneously eg launch Igo then try to operate a split screen app, it crashes before even selecting another app.
I have checked with some fake memory apps and it appears to only have 2gb memory.
2gb should be sufficient to run simultaneous apps without crashing to launcher, is it possible to fix the incorrect memory amount (and android version) with root?
The launcher also seems to be memory heavy, it appears to take nearly 1gb on its own. I assume all the apps etc on the first page are a part of the launcher, so replacing it may not be possible without loosing functions.
I will upload the igo folder when i get a chance, it's a shade under 8gb so will take me a couple of days!
I'll leave a link when it's done.
Dave
Click to expand...
Click to collapse
Thank you obfripper for your eye-opening message!
I knew that the OS version was spoofed, but I could have never thought that they would spoof the RAM amount too! Silly me.
Unfortunately, you are right. I checked with "Fake Device Test" and your point came true. And for the fact that I was still skeptical, I double checked with a terminal emulator with the "free" command, same result :'(
As for your questions, I searched for restoring the correct amount of RAM in the OS. It's a very difficult procedure, you literally have to recompile the kernel, which is something I don't have the knowledge, neither the time to do. Guess we are stuck with a scam device.
As far the launcher goes. Some apps are indeed dependent on it, some are not. Some people replaced the default apps with others (radio, phone etc) but many of them have issues and don't work, so I'm staying away of trying to replace them. The launcher could be replaced with the stock one with some effort, but although I don't like it being too simple and too "golden", I find it convenient so I decided to keep it.
The only thing I will do is change the "golden" theme which I hate, to a more fancy "green" one. This will happen soon and I will share it when it's done.
I ordered my unit in early March from banggood. I entered their site and opened a complain asking for full refund for being scammed. I'm pretty sure I'll get at least half of my money back and then I will be a little more satisfied with my purchase.
Thank you Dave for all the interesting information and I will keep you updated.

@MarkoDiMarko
Will the device be stable when I install your custom rom. I've also this device and the navigation app keeps closing itself. When the root will fix it I hope I have a stable device. I use TomTom for navigation.

****tyNL said:
@MarkoDiMarko
Will the device be stable when I install your custom rom. I've also this device and the navigation app keeps closing itself. When the root will fix it I hope I have a stable device. I use TomTom for navigation.
Click to expand...
Click to collapse
There will be no difference in stability, neither better or worse.
It's the factory ROM, only patched to be rooted with Magisk.

I'm also contacting banggood. It's not working stable with the tomtom navigation app. I think that's becouse the app will use more ram than that's actualy available and then crash.

MarkoDiMarko said:
Thank you obfripper for your eye-opening message!
I knew that the OS version was spoofed, but I could have never thought that they would spoof the RAM amount too! Silly me.
Unfortunately, you are right. I checked with "Fake Device Test" and your point came true. And for the fact that I was still skeptical, I double checked with a terminal emulator with the "free" command, same result :'(
As for your questions, I searched for restoring the correct amount of RAM in the OS. It's a very difficult procedure, you literally have to recompile the kernel, which is something I don't have the knowledge, neither the time to do. Guess we are stuck with a scam device.
As far the launcher goes. Some apps are indeed dependent on it, some are not. Some people replaced the default apps with others (radio, phone etc) but many of them have issues and don't work, so I'm staying away of trying to replace them. The launcher could be replaced with the stock one with some effort, but although I don't like it being too simple and too "golden", I find it convenient so I decided to keep it.
The only thing I will do is change the "golden" theme which I hate, to a more fancy "green" one. This will happen soon and I will share it when it's done.
I ordered my unit in early March from banggood. I entered their site and opened a complain asking for full refund for being scammed. I'm pretty sure I'll get at least half of my money back and then I will be a little more satisfied with my purchase.
Thank you Dave for all the interesting information and I will keep you updated.
Click to expand...
Click to collapse
Hi,
two days ago I received the same radio from banggood. Have you already got any feedback concerning your complain from banggood? Did you get any money back?

_KoSTeK_ said:
Hi,
two days ago I received the same radio from banggood. Have you already got any feedback concerning your complain from banggood? Did you get any money back?
Click to expand...
Click to collapse
I opened up a dispute and they asked for photos and video, showing the problem.
I decided to upload a video on Youtube and send them the link, you can watch it here:
https://www.youtube.com/watch?v=_bRxONGk_BA
Offers, declines and counteroffers started and continued. The biggest amount someone else got back and keep the device, was 40 euros + 2200 BG points. So, that was my last counteroffer to Banggood and that is what I got.
Good luck with the dispute!

MarkoDiMarko said:
I opened up a dispute and they asked for photos and video, showing the problem.
I decided to upload a video on Youtube and send them the link, you can watch it here:
https://www.youtube.com/watch?v=_bRxONGk_BA
Offers, declines and counteroffers started and continued. The biggest amount someone else got back and keep the device, was 40 euros + 2200 BG points. So, that was my last counteroffer to Banggood and that is what I got.
Good luck with the dispute!
Click to expand...
Click to collapse
After a month struggling with Banggood they refunded me about 35euro. It seems, that through this whole time they have not considered my offers. It was very difficult to negotiate with them, consultant send very similar propositions and information all the time. I also wrote a negative opinion about the product but they did not post it at the auction.

They seems to change cpu in the device...new one purchased on 17/07 has cpu allwinner t3 with max 1200 Mhz same fake 4 Gb memory and fake android....but came with already rooted firmware but not properly working root.

I had the imprudence to buy a radio tape recorder for $ 113 YUEHOO YH-605 on banggood.com.
Everything in it is good according to the description and a video with disassembly and display of components confirms this. Unless the amplifier is soldered from 7388 to 7850.
But in fact it was not what was in the description.
Instead of Android 9 installed 8.1
Allwinner T3L 4 Core 1.2GHz is installed instead of Allwinner T8 8 Core 1.8GHz
Instead of 4GB of RAM, only 2GB is installed. But this is understandable. Allwinner T3L works with no more than 2GB.
bluetooth does not interface with anything other than the phone, you can forget about ELMs and bluetooth adapters for diagnostics of gas equipment (in my case Stag).
Which radio chip is soldered is not clear, the sticker was ripped off by the conspiracy the Chinese and without removing the shielding protection of the soldered one is not possible.
I can't add a photo. I have less than 10 posts. Who disassembled and who has a photo of a sticker with a radio chip designation? I have not yet been able to get the firmware from the seller in order to understand what kind of chip is indicated in it.
"translate by google", sorry.

Seems they brought out a yh-605b version
Ordered mine from banggood (deal price £90 delivered with insurance) from eu warehouse (to the uk)
I ran the fake test device app and although android version is still scammed, they have greatly improved the memory issue! Over 3gb ram (I'll run the test again and update my post with exact figures today).
The manual they provided shows a different stereos wire diagram which is confusing...
Does anyone know if the 8 pin (female on the stereo) is where the steering wheel controls plug into? Im struggling to get it working on a seat altea (factory fitted vw engine) i have the right adaptor so everything else works fine!
Also which igo files are safe to delete or are there any that need to stay? I use google maps and galaxy note 10+ 5g is the no brainer processor to run sat nav ?
Thanks ?

tina333 said:
Does anyone know if the 8 pin (female on the stereo) is where the steering wheel controls plug into? Im struggling to get it working on a seat altea (factory fitted vw engine) i have the right adaptor so everything else works fine!
Also which igo files are safe to delete or are there any that need to stay? I use google maps and galaxy note 10+ 5g is the no brainer processor to run sat nav
Thanks
Click to expand...
Click to collapse
As I can remember hooking it up, you use the "KEY1" cable, plus I used a ground to connect them to the 2 pins that came from my car.
I have already lost the "iGO" folder during update But I remember that there was a folder named "iGO" that contains all the files. If you use a file explorer, I'm pretty sure you will find it and remove it safely.

I have a similar unit I purchased back in March from aliexpress. I stumbled across this post as I'm hoping to find a root solution. Mine passed the android version test on Fake Device Test app even though it's reporting as 9.0 in about device, actual is 8.1, so kinda weird it's reporting correctly everywhere but the about device section. Ram was advertised as 2GB on my device, reported accurately. The sellers page said that if it has 4 cores it is T3 and 8 cores is T8 but everything on mine is reporting as T3-P1, including Fake Device Test app and CPU-Z, even though it does show it indeed has 8 cores. Your devices specs seem to fit closest to my device of any I've seen posted about. My device specs are as follows:
Android Version = 9
Hardware Information = 8 Core Allwinner -ROM 32GB - DDR3 2GB - 1024x600
Kernel Version = Linux 4.9.118 - Wed Oct. 16 13:55:41 CST 2019
OS Version = KC1C01D5-O55-1.0.4.3.1 - BLINK_NETWORK - 20191016
MCU Version = STM32-20190924-11-KC1-38
I figure these units were probably pieced together with spare parts they had a fair amount of. I want to try your root method, but I'm a bit leary of flashing anything to this unit in fear it won't work again. I at least need to make a full back up of each partition before doing much of anything. Due to the minor differences in our Kernel, OS and MCU versions I hesitate to flash the file you provided in Post 2. I learned my lesson a few years ago on an older MTCB unit that I spent two or three days recovering after flashing an incompatible file. Would you be willing to provide the steps taken to achieve root access? Thank you in advance!

Steve1698 said:
I have a similar unit I purchased back in March from aliexpress. I stumbled across this post as I'm hoping to find a root solution. Mine passed the android version test on Fake Device Test app even though it's reporting as 9.0 in about device, actual is 8.1, so kinda weird it's reporting correctly everywhere but the about device section. Ram was advertised as 2GB on my device, reported accurately. The sellers page said that if it has 4 cores it is T3 and 8 cores is T8 but everything on mine is reporting as T3-P1, including Fake Device Test app and CPU-Z, even though it does show it indeed has 8 cores. Your devices specs seem to fit closest to my device of any I've seen posted about. My device specs are as follows:
Android Version = 9
Hardware Information = 8 Core Allwinner -ROM 32GB - DDR3 2GB - 1024x600
Kernel Version = Linux 4.9.118 - Wed Oct. 16 13:55:41 CST 2019
OS Version = KC1C01D5-O55-1.0.4.3.1 - BLINK_NETWORK - 20191016
MCU Version = STM32-20190924-11-KC1-38
I figure these units were probably pieced together with spare parts they had a fair amount of. I want to try your root method, but I'm a bit leary of flashing anything to this unit in fear it won't work again. I at least need to make a full back up of each partition before doing much of anything. Due to the minor differences in our Kernel, OS and MCU versions I hesitate to flash the file you provided in Post 2. I learned my lesson a few years ago on an older MTCB unit that I spent two or three days recovering after flashing an incompatible file. Would you be willing to provide the steps taken to achieve root access? Thank you in advance!
Click to expand...
Click to collapse
If every version is not the same as yours, do NOT use my patched version, this would be a recipe for disaster.
First make sure you have some original firmware you can always revert to (you can only be sure if you have already tested it and everything went on smoothly) and then we can discuss how you can patch the original firmware, if I can remember the procedure after so many months