yashsingh1/xdaforums huggingface dataset:
[Miscellaneous Android Development] rhay:
i tried to use the link on how to create bootable sd card but i am a noob can't understand those language. any detailed and simple instructions? can i create that bootable sd card from another device using terminal emulator? i just dont have an sd card reader for my computer.
[Miscellaneous Android Development] amjl2000:
hmmm... bricked it?

I was having an unsuccessful play with the ICS rom last night. After failing this, I went back to stock 2643, no problems. However, I put CWM5028 (as the stock rom removes cwm) on. I realised that I really wanted 5027 this time around, so I reflashed with 5027, and then in recovery, I put on Cm7 (7/6) which I had previously tested prior to trying ICS.

The update was successful, but after rebooting, the power went and never came back. No power LED either, and I have just removed the battery connection and this has made no difference either. PLus depressing power for ages also a no go.

I may have wiped dalvik/battery/data caches after updating the rom, if this helps.

Any other ideas?
[Miscellaneous Android Development] jpisini:
http://xdaforums.com/showpost.php?p=23471133&postcount=409

Thanks to this post by Milaq I was able to revert from ICS to CM7. After running ICS CM7 would no longer see the internal sdcard even though the stock OTA 2643 would. I rewrote the mbr then installed CM7 and I'm back in business. Just got to restore all my books and stuff. If you have tried ICS and want to revert you will most likely need this. It only works on 16gb devices.

---------- Post added at 08:09 AM ---------- Previous post was at 08:05 AM ----------

Try plugging it in and walking away for an hour sometimes they need time , I am not sure why.
[Miscellaneous Android Development] jpisini:
Rom manager won't work unless you let it install a recovery but we use a custom recovery how did you get it to let you download?

---------- Post added at 09:42 AM ---------- Previous post was at 09:16 AM ----------

I don't believe you can do that. You can try something like this http://www.staples.com/Kodak-R111-MicroSD-Card-Reader-Writer/product_861243 it is under $15, I usually don't recommend fixes that involve a purchase (sometimes people can't afford them) but I don't know a better way to help you.
[Miscellaneous Android Development] 044003:
Instructions to rescue A1

If no sd card reader just buy it:)

I'm sorry that I do not have the permission to post links

So to the links below, you should replace DOT into "." to browse them

Do you have the .img file that for the sd card?

If you don't, just download it from (wwwDOT115.com/file/clykyncr) by press the green button on the site

Instructions to rescue the tablet:

1. you ought to use "win32 img writer" to burn it into a 2G or larger sd card. It can be download here, a binary version: launchpad.net/win32-image-writer/+download

2. Then, exact and rename the "recovery.ub" file in the link(wwwDOTdoc.ic.ac.uk/~grm08/ideapad/cwm-5.0.2.7-rev3-ideapad-a1.zip) to be "recovery.img" into the sd card

3. You can make a bootable sd card now

4. After inserting it and boot the A1 with power button and audio (+) button, you should go into the cwm page

5. format back your sd card by easeUS home edition (downloadDOTcnet.com/EaseUS-Partition-Master-Home-Edition/3000-2248_4-10863346.html)

6. rename a official ROM to "update.zip" and put into sd card (downloadDOTlenovo.com/slates/a1/OTA/), "A107W0_A234_001_015_2643_ROW.zip" is recommended

7. just flash it by "apply update from sd card"

8. your tablet could be save then
[Miscellaneous Android Development] amjl2000:
Plan A (above) didn't work :(

Next plan is to have battery plugged in and leave it to self-discharge... reckon it could take a while though, so plenty of time to try other things :)

you reckon amazon would take it back? mind you, would probably have to send it back to germany where I bought it from !
[Miscellaneous Android Development] jpisini:
Amazon will take it back as long as it is within the time frame. They are pretty easy going about returns.
[Miscellaneous Android Development] SevenB:
why there is no update since June 8th?:confused:
[Miscellaneous Android Development] jpisini:
There is look at the top the ones with nightly in the name. the one for today is there cm-7-20120610-NIGHTLY-A1_07.zip. I don't know why the name changed.
[Miscellaneous Android Development] digim:
I did not do anything additional. I just flashed cwm-5.0.2.7-rev3-ideapad-a1, then CM7.
[Miscellaneous Android Development] jpisini:
I can't get it to work just complains about the recovery and I am using same one as you.
[Miscellaneous Android Development] dtdpul:
Can somebody make a summarize that what are not working with the lastest CM7 before I manage to change to it? Great thanks.
[Miscellaneous Android Development] amjl2000:
Well my A1 is well past its amazon return date (tbh, expected), and I doubt that Lenovo would accept it under warranty (you can see a couple of marks where I removed the back cover, plus if they got it going it would have cm7 on it).

There's something else I found online to try (the 45sec then 5sec power trick) that I didn't do quite right on the weekend. Otherwise I'll come back here in a few weeks when Graham is back and see if he (or any of the the other diehard devs) has any further bright ideas!
[Miscellaneous Android Development] bejay:
Have you tried making a bootable sd and booting it from that?
[Miscellaneous Android Development] amjl2000:
Nothing boots, no power led when plugged in (and left for a few hours)... nada. I would expect (unless you think otherwise) that without any of this, things have gone wrong before any attempts to establish the presence of an SD card.
[Miscellaneous Android Development] razorblade79:
This thread inspired me to get the a1 as a try-out tablet; so far I like it (especially for the price.)

However since it works fine I'll wait until I flash a rom - I wonder though if cyanogen gives it a noticable speed boost? I know my o2x feels 10 times faster than on stock. What are everyones experiences in that regard?
[Miscellaneous Android Development] kurek007:
I have same problem. I wanted flash back from ics to Cm7 and something has gone wrong.

No led nothing. I could run bootable SD card but I couldn't flash nothing else. I will try tonight yet.
[Miscellaneous Android Development] amjl2000:
You were able to power on with a bootable SD card? Wow, ok, I will give it a try tonight. I just want to feel that familiar bzzzz when I turn it on ;)
[Miscellaneous Android Development] kurek007:
Yes. I thought I bricked it but I prepared SD card and sound strange I had to hold power button to power it off for about 30 sec and than power on with volume down.

I'll let you know tonight.
[Miscellaneous Android Development] jpisini:
For me the only two things that don't work are DSP manager (sound works but if I use this the speaker crackles) and I can't reboot into recovery I have to shut down and then boot into recovery. It is pretty solid.

---------- Post added at 07:38 AM ---------- Previous post was at 07:34 AM ----------

The A1 is pretty hard to brick so unless you have a truly defective unit you should be able to get it working. Plug it in for an hour then put bootable sdcard in and hold the power button down for 45 seconds like you said then release wait a second and hold it in again for 5 seconds if you don't get any kind of lights at that point it is most likely hardware.

---------- Post added at 07:39 AM ---------- Previous post was at 07:38 AM ----------

It is definitely more responsive under CM7 than under stock. It is not 10x but it is much smoother it just feels better. The stock Rom works OK it is just not smooth if that makes sense it works fine though, CM7 is better.

---------- Post added at 07:42 AM ---------- Previous post was at 07:39 AM ----------

I couldn't flash stock or CM7 from the bootable sdcard I had to install CWM first and from that use CWM to come back to CM7. I will be interested to hear if your internal sdcard works after. I had to flash Milaq's partition fix to get mine working again (it only works on 16gb version).
[Miscellaneous Android Development] gmarkall:
Pretty much every hardware function requires the bootloader to get started and initilialise the hardware before anything happens - this includes charging the battery, the charge LED, the vibrator, getting the screen to turn on etc. - so if you have a messed up bootloader the tablet will appear to be unresponsive to absolutely everything, and appear like a complete brick.

If you've not yet tried booting from SD card (sorry, lost track of the thread) then there's still a decent possiblity of getting it going again, especially if it stopped working after playing around with ICS.
[Miscellaneous Android Development] amjl2000:
You guys give me optimism and confidence :) SD card will be done tonight

(I could swear I saw something saying you were away to the end of the month... bloomin well hope you're not on honeymoon or something.)
[Miscellaneous Android Development] amjl2000:
OK, first thing I did when I got home was make a bootable SD, and lo it lives! Albeit with a reportedly dead battery... still, play time later on will be more fun now! ty guys :)
[Miscellaneous Android Development] jpisini:
Glad it boots the A1 really is hard to kill the only system harder is the EVO phone those are next to impossible
[Miscellaneous Android Development] gmarkall:
Is your battery meter stuck at 0? Mine got stuck there for a while then righted itself after a couple of charge cycles.
[Miscellaneous Android Development] amjl2000:
I wouldn't say it got stuck, it was the first thing (and only thing) to actually happen... I used a boot image I think for ICS. A wall charger got it up to 30% nice and quickly.

Anyway a bit of faffing with the right roms and files, and I got 2643 stock back on.

I there's a few of us working damn hard at it :D
[Miscellaneous Android Development] kurek007:
Can you tell me in with order and what you flashed?

I boot from sd card in to Cwm recovery and I can not flash anything else :(

Back to live :):):)

Thanks to all.
[Miscellaneous Android Development] jpisini:
Have you tried flashing CWM to the tablet from the SDcard?
[Miscellaneous Android Development] amjl2000:
As jpisini says... I think I had to put the CWM5027 zip on the SD card as well as the recovery stuff. Then when you start up in recovery (which is on the SD card) you can then install the CWM from the SD card and that will put it on locally.

I remember it was a bit of trial and error to get it going, but once I was able to boot into CWM without an SD card present (and tehrefore knowing i was booting locally), I didn't have a problem (putting stock on with ramdisk, kernel and wiping data, all to be sure).

---------- Post added at 07:59 AM ---------- Previous post was at 07:50 AM ----------

Using good ole internet, I found this

http://www.clockworkmod.com/rommanager/developers/morrison?name=Motorola Cliq

OK, so it's the wrong hardware, but this gives you the option to download google apps, though from what I can tell its the same gapps as we're already having to run? There are some slightly different versions though.

My guess is 'GPS' has been confused with 'google maps'?
[Miscellaneous Android Development] kurek007:
I couldn't do that. Couldn't flash CWM. I managed to take recovery image from ics 91us. zip and same others files and I got to stock recovery.

I am happy on CM7 now. :)
[Miscellaneous Android Development] amjl2000:
@jpisini

As you're pretty intimate with the sound issues, in your playing around with recent CM7 builds and even ICS, have you noticed the sound being worse? I put on a 07Jun build, and the hiss and crackling was terrible! DSPman made no difference if on/off. I have now gone back to 13Apr, and I have never had it so good. A bit of crackle between tracks and a few occasions during tracks, but very small, plus I don't get a huge burst of noise immediately before a new email indication that I had before! I have turned DSPman off as it does seem to have an effect.

Of course, I think I said this before (about the crackling disappearing) and then it got worse again..
[Miscellaneous Android Development] jpisini:
Mine seems to be about the same with new builds as well. To be honest I am hard of hearing so it could be crackling at certain frequencies and I wouldn't know. For me as long as I don't use DSP manager sound works as normal. I didn't have the issue under stock they don't use DSP but I could use equalizers where I can't under CM7. Didn't do a lot of testing.of sound under ICS what I did worked.
[Miscellaneous Android Development] Tint Ag Khaing:
Off Post Topic, But Please Give me some advices..!!

The problem is in my lenovo ideapad a1 2GB which has internal SD space of 1.03 GB and system storage of about 280 MB in the original.

But when i flashed the snarl firmware, the internal storage becomes 1.03 GB and internal SD card is about 280MB. Then I tried flashing the original firmware but the switching between them is not changing the partitions described above.

I booted into CWM recovery and doing wipe etcs.. are not working for me... Please kindly help me !!
[Miscellaneous Android Development] akulp:
Hi!

I'm using nig. build from juny-04 but i still have HUUUGEE battery drain over night (35% in 7h, sleep with wifi policy off). Before there was a few %.

I set min CPU freq to 1000 and max to 1200.

Is anyone still having problems with battery drain on newest builds?
[Miscellaneous Android Development] mikelets456:
I set minimum to 300 Mhz and max 1200 and lose only 3%-7% overnight.
[Miscellaneous Android Development] milaq:
what do you expect with a min frequency of 1000?

and for what reason do you set it to that value?!

if you want quick and responsive behavior, choose the interactive governor.
[Miscellaneous Android Development] jpisini:
Version in GooManager said it was June 14th I am assuming the server is in another part of the world and this isn't a copy of CM7 from the future. Everything seems pretty good, still get crackles if I use DSP Manager fine without. Keep up the great work. :)
[Miscellaneous Android Development] digim:
My Tablet cannot by rescued by this method

I tried this bootable SD, but it cannot go to anything.

I feel the SD card is not working even at boot stage.

I am sure SD does not work under ICS.

I really wants go back to CM7.
[Miscellaneous Android Development] jpisini:
I'm order to come back to CM7 from ICS I had to use a.bootable sdcard to rewrite CWM then flash mbr fox then CM7. The only thing that worked.
[Miscellaneous Android Development] akulp:
I just try to set min CPU to 1000, to test battery. Because older builds (from march) there was no such problems, even if there was min value to 1000.

Yesterday I set min value on 300 and I lost 8% in 8 hours.

----

Thanks for tip, I'll set to interactive.
[Miscellaneous Android Development] milaq:
very strange then,

do you have problems with wifi reception in your area?

any unnecessary apps running which are doing stuff in the background? (e.g. failbook)

maybe your battery is worn out. there are many factors.

if correctly configured your tab should lose 2-4%/night.
[Miscellaneous Android Development] antonfelix:
SD card boot image downloaded fro 115.com asks for password while extract

the sd card boot image asks for password. what is the password :confused:
[Miscellaneous Android Development] Stolz:
I'm having a problem with the last nightly builds. I can't install gapps. I use CWM to install CM7, then wipe data/cache/dalvik, then install gapps. I get no error but when I first boot the flashed nightly there are no gapps at all. I'm using gapps-20110828.

Any tip about what is going on?
[Miscellaneous Android Development] akulp:
-----------

As I said. With older builds, battery lose was as you said, 2, maybe 3% in 8 hours.
[Miscellaneous Android Development] jpisini:
I am using 6/14 and gapps installed as normal for me. Redownload maybe they got corrupt.
[Miscellaneous Android Development] dtdpul:
As CM7 updated everyday, pls advise if we need to re-install all apps whenever do the update or all of them will stay remaining on the system, no need to re-install one by one?
[Miscellaneous Android Development] jpisini:
As long as the new version doesn't overwrite the kernel you can just do an install and not wipe keeping all your apps.
[Miscellaneous Android Development] dtdpul:
Anyone here has ever use V4 of Snarl rom? please advise if CM7 better then V4 that I will move from that.
[Miscellaneous Android Development] jpisini:
Never tried snarl where did you get it?
[Miscellaneous Android Development] dtdpul:
From the Chinese forum, but you need to buy an activate code to use all the functions:

http://lepad.it168.com/thread-1933365-1-1.html

BTW, the CM7 has still yet fixed the Screen lock-key, isnt it? thks.
[Miscellaneous Android Development] thomas479:
Bricked or something

I bricked my tablet (actualy my sisters one :D ), first installed ICS, that did not worked fine, so I thought Cyanogenmod 7 may be some thing. Now I found out that the order of those installs is not right. Now I got the tablet not booting. No Lenovo Logo, no charge light, so I searched and found the solution, I thought. But it doesn't work, and I am a little confused from the explanation.

I need to download Win32 Disk Imager. Than extract recovery.img and write it to the SD-card with Win32 disk imager. That is what i got.

I don't get step 3. Can some one explain that to me?

The rest I get.

Thomas

Ps. I know my English is rubbish.
[Miscellaneous Android Development] kurek007:
99% you didn't brick it. I had same problem.

I'll try to find link and let you know.

http://xdaforums.com/showpost.php?p=26961316&postcount=54

You may need to hold power button for longer (45 sec) and than power + volume down to boot.
[Miscellaneous Android Development] thomas479:
Thank you very very very much!! :D

Also from my sister!

Thomas
[Miscellaneous Android Development] jpisini:
Latest daily working well.
[Miscellaneous Android Development] digim:
I tried many solutions.

This one works:

http://a1.cu2.at/A1_Bootable_SD/A1_BootSD.iso

Details can be found here:

http://xdaforums.com/showthread.php?p=26942565#post26942565

---------- Post added at 08:35 AM ---------- Previous post was at 08:11 AM ----------

I realized that I have "Flash ClockworkMOd Recovery".

I just tried "Samsung T-Mobile GalaxyS2". (only 3 models, no A1)

Then I could "Download ROM".

Anyhow, what I did is actually to install GAPPS. This is included in Lenovo 2643, but not in CM7.
[Miscellaneous Android Development] dtdpul:
Please advise if above issues fixed with latest update version?
[Miscellaneous Android Development] mikelets456:
As I am reading through the thread I have a few questions. I installed CWR and glad to see that is working. If I want to install CM7 from 2525 I simply clear Cache, Dalvik and Data then install the CM7 file? That's it? I am familiar with flashing ROMS on my Droid X and want to make sure it's the same way.

One other point of concern/confusion is the internal SD card. First off are we referring to the 14 GB partition or the 2 GB internal SD? Also, I have about 5 Gigs of movies and music on the internal SD (not external micro), will that be wiped out or preserved as if it were and external Micro SD card? Also, it sounds as if the internal 14 GB internal SD is not recognized at this point...correct?
[Miscellaneous Android Development] gmarkall:
Yes, that's it - if you want to go back to stock, as well as restoring your backup, you also need to flash the stock ramdisk. I have one for 2375 on the download site. I've just compared these two ramdisks and I think it should be OK for the 2525 version as well.

We're referring to the ~14GB partition, which is the internal SD. The data on it won't be wiped out, but CM7 won't be able to see it unless you copy over the Lenovo hacked Vold from the stock system.
[Miscellaneous Android Development] LoveTKB:
Can you add the OTG function to this rom.
[Miscellaneous Android Development] gmarkall:
Have you tried it? Should I take it that it isn't working at the moment? I don't have any OTG stuff to test with.
[Miscellaneous Android Development] LoveTKB:
OTG function don't work on stock system. But I didn't try in CM7.
[Miscellaneous Android Development] gmarkall:
OTG support appears to be compiled into the kernel, and is supposed to be supported on CM7. But someone will have to try it before we know whether anything needs to be done to make it work :)
[Miscellaneous Android Development] xbdesign:
I could test it this evening BUT I'am pretty shure that it will not work.

I was testing A LOT with Stock ROM and no way that i could change values of hostmode and Vbus.

The Stuff you can find in:

/sys/devices/platform/musb_hdrc/mode

/sys/devices/platform/musb_hdrc/vbus

there are another 2 Places where you can set Vbus which i dont remember now.

Whatever you'll try, it would be overwritten.

So I think that without kernel changes it would not be possible to activate OTG.

Also those 3 Leds that are turning off after 2 Seconds are in kernel Hardcoded.

:(

extracting kernel and searching (hex) for otg, resulted with finding error messages that kernel don't support this.
[Miscellaneous Android Development] gmarkall:
Thanks for the info - it would be nice if you could try it just to confirm, but it sounds like we might need the source from Lenovo then.

Have you located what is going on in the kernel? I noticed that there is a GPIO pin for the LEDs, but it looked like it was configured as an input pin - I had assumed that it was hardcoded in the touch panel firmware, which would be even more difficult to modify, but I could be (hope to be :) ) wrong.
[Miscellaneous Android Development] aLoNe.Adams.K:
good news!

I hope u get it!
[Miscellaneous Android Development] Titicaca:
very interesting ...

It is for 16G version, isn't it?
[Miscellaneous Android Development] gmarkall:
It should work on either the 16GB or the 2GB version.
[Miscellaneous Android Development] xbdesign:
I was searching for a day to find a way how to control those lights.

I found out that every time the light goes off (2 seconds after touching it) there would be one message in dmesg with this text:

******MORGAN_TOUCH******* touch_led off

So I searched all over a system and sys to find out from where it could be driven, but i did find nothing.

Only 2 Led’s that i could control are display back light and usb led.

So i thought that it had to be in kernel.

I took uImage File from Stoc and pul a kernel file out

File is 6,1 MB big and with Hex-Editor readable.Most messages at least.

So I searched for “******MORGAN_TOUCH******* touch_led off"... and suprise suprise, bad suprise.

It is there.

At this point I gave it up.
[Miscellaneous Android Development] BuzzyB:
Is it hard to port your achievements to build a working CM9?
[Miscellaneous Android Development] gmarkall:
Dunno if it's of interest to you, but you can get /proc/kallsyms and match it up with the code in the uncompressed kernel to see what functions things are happening in - the uncompressed kernel is loaded to 0x8000c000 (from memory, I think that's what it is).

I've only skimmed the uncompressed kernel, but it looks like there's lots of unnecessary stuff in there - support for TV capture cards, etc.
[Miscellaneous Android Development] gmarkall:
It will be quite a bit harder than for CM7. There are various barriers, including the lack of proprietary ICS libraries.

SpiegeleiXXL is working on a vanilla AOSP ICS port, but there are problems with the touch screen. Unfortunately as we don't have the kernel sources from Lenovo yet, it's difficult to investigate what's going on with the touchscreen driver.