yashsingh1/xdaforums huggingface dataset:
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] Paul-Lemonidis:
Thanks

I flashed from an SD Card and all was well. I can now reflash the same version, which I could not before, without HSPL. Thus for the moment I no longer need HSPL. Thus my warranty is valid again and I have a stable phone with the latest correct vendor ROM. I may try a custom ROM again at some point in the future if I experience problems but at least I can say I gave it a fair chance.

As a sideline, Swype works beautifully with this ROM.

Once again many thanks in advance.

Regards,

Paul Lemonidis.
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] netvpn7:
hi

i am facing the similar issue, cannot revert back to branded ROm it does not boot any further than HTC logo, will the goldcard can do this,,, aslo my branded ROM is 1.72.82124, and reason i want to put back on is that my phone memory after installing custom rom is always less than 12mb then go below 1 mb in few hours..

tried hspl, sspl etc nothing works..
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] fred_up:
Take the 1.72 ROM and use the flash from the SD Card method. This will get you back your memory.

The reason for the memory problems is a combination of 3.14 ROM and HSPL.
[Epic 4G General] simpleproof:
I flashed the DI18 update back in November to get one the early Froyo builds. It's worked great for a while, but so many better roms and been released since. So I tried to reboot into bootloader mode tonight to use heimdall to flash the DK28 modem to get some newer roms. No dice. Using the keyboard 1 + power button just results in a normal boot. If I connect via adb and run "adb reboot-bootloader" or "adb reboot bootloader" the same thing happens, just a normal reboot, end up back at the normal home screen.

Anyone have any other ideas or is my phone borked now?
[Epic 4G General] slackarena:
1 and power boots you into Download mode. To get to recovery you need to power up by holding 'down volume', 'camera', and 'power'. If that doesn't boot you into Clockwork, then you need to consider flashing with Odin, which you should probably do anyway since you need to flash to the DK28 modem as well
[Epic 4G General] slackarena:
P.s. DI18 isn't froyo, that's still eclair
[Epic 4G General] simpleproof:
1 + power doesn't boot me into download mode unfortunately. I can boot into Clockwork just fine. Unfortunately, I'm running Linux so I can't use Odin easily. Either way I don't think it will be able to flash it from device/recovery mode.
[Epic 4G General] edonnelly:
When you did DI18 did you use Odin and one of the "Return to Stock" set of files? I think you are fine. Those return to stock files wipe out the clockwork recovery. Just try the "One Click" thread which is a sticky at the top of this forum. That should get you clockwork back. As said above, though, you'll probably want to Odin to DK28. You will need to be able to hold 1 and power up, but mine often fails on the first try or too. Good luck, and I think you're in fine shape, so don't worry. I haven't had a problem yet that Odin couldn't fix, and I've caused a lot of problems on my phone.

EDIT: Just saw your post that came in the same time as mine. I think your best bet is to borrow a friend's PC and Odin back to stock, then go from there.
[Epic 4G General] johnyardavid:
Dude, the issue is not clockwork. It's his inability to get into download mode. So he cannot use heimdall or odin without getting into download mode.

To the OP why not try noobnl's zip to flash dk28 modem and stock dk28 rom with a couple extras. Maybe that will provide download mode for you.
[Epic 4G General] simpleproof:
Does someone have a link that item? I've seen lots of people reference this, but have yet to actually find a working link. The wiki doesn't seem to have anything about it, but I assume I've just missed it somewhere.
[Epic 4G General] simpleproof:
Nevermind, found the link, I think this is it: http://xdaforums.com/showthread.php?t=861341
[Epic 4G General] johnyardavid:
Yes, that is the one. I would flash the modem first if I was you, it may not make a difference but it seems prudent to do so.
[Epic 4G General] simpleproof:
Thanks everyone, I ended up rebooting to recovery mode and resetting everything. Re-installed clockwork rom manager and flashing this rom: http://xdaforums.com/showthread.php?t=861341 but it couldn't connect to the Sprint network afterwards. I flashed the modem update and it seems to be working.

For whatever reason, I still can't get into bootloader mode at all. 1 + power goes to normal boot up. adb reboot does the same thing.
[Nexus S General] BOMBSHOP:
Can anyone add the slide options for text and call that were on the other Galaxies thanks
[Nexus S General] ikon8:
Patience, it should be in CM7. They build from source so it takes awhile to get all the features in there.
[Nexus S General] BOMBSHOP:
Cool thanks alot
[G2 and Desire Z Q&A, Help & Troubleshooting] luky78633:
Hi,

I am not usually an expert on porting ROM's and stuff but i was wondering if you can port the HTC Desire Z rom over to the tomobile version the G2?

The desire z actually has couple of different features that i would like the maps that are already stored on the phone.

If it its possible please do let me know

Thanks.
[G2 and Desire Z Q&A, Help & Troubleshooting] wileykat:
Once you are rooted and s-off using the guides in the Development forum, you can use any ROM you desire ;)
[G2 and Desire Z Q&A, Help & Troubleshooting] KiNG OMaR:
*points towards link* http://xdaforums.com/showthread.php?t=837042 *nods head*
[G2 and Desire Z Q&A, Help & Troubleshooting] luky78633:
thanks guys
[G Tablet General] steve1040:
When I goto yahoo.com - The browser closes.

I've tried dolphin, Miren and the stock browser.

I'm running Vegan b4

Thanks

Steve
[G Tablet General] lordgodgeneral:
No problems here, loaded fine on dolphin HD on tnt 3.1.2
[Epic 4G Android Development] Dameon87:
Here you go guys.

This kernel will allow you to use CM6 w/ ext4.

Basic instructions:

Flash back to a normal DK28 rom,

Follow all steps here:

http://xdaforums.com/showthread.php?t=890494

EXCEPT, flash this kernel at the end, after flashing Cyanogen Mod: http://efragtv.com/android/CM6-DUALFS-v1.1.zip

This also fixes wifi, and su.

NOTE: Everytime you flash CM6 (To update to a new nightly, or whatever reason) YOU HAVE TO REFLASH THE KERNEL!! CM6 installs its own kernel.
[Epic 4G Android Development] *AndroidMaster*:
iam confused...do u have to flash to stock..then do the ext4 then flash cm6...then the kernel or wat
[Epic 4G Android Development] Dameon87:
Just as you said.
[Epic 4G Android Development] Dameon87:
UPDATE:

This new version fixes lpm battery charging freeze.

Flash in CWM

http://efragtv.com/android/CM6EXT4-Kernel.zip
[Epic 4G Android Development] jbowen:
This combination absolutely FLYS!!

Consistently score in the 2300 range in quadrant (yeah yeah I know), but the whole phone just feels snappier too.

For some reason my 3g doesn't seem to work, so I won't be keeping it (tired of not receiving mms too, so that's as good of an excuse to try out Quantum as any).

Great work Dameon87! Hopefully the cmsgs team implements this in as standard in the future!
[Epic 4G Android Development] theimpaler747:
Hmm.... I wonder what would've stopped 3G from working in the modification...
[Epic 4G Android Development] AndrewZorn:
Was there any reason Samsung used RFS in the first place? Is there no downside in using ext4? I usually use ext3/4 when given the choice on a desktop Linux installation, but just wondering if there's something I'm missing here.
[Epic 4G Android Development] gTen:
1) its their proprietary file system

2) ext4 was not made for flash memory..thus will reduce the lifespan of your NAND memory..don't panic though it'll still last a few years...just not as long as it would with RFS...

Mostly 1...
[Epic 4G Android Development] bryanfritz1:
Just for curosity do you have any links for actual half life of data on flash memory, would be a great resource if you did.
[Epic 4G Android Development] arashed31:
So, I've been running Quantum ROM 2.5 with ext4.

Can we flash this and CM6 without going back to stock DK28 and running the bat file?
[Epic 4G Android Development] DevinXtreme:
In case I don't catch you...

You forgot root in the kernel. So, here I am, super fast ROM, and no root access. Oh, and it took three tries:

1st - Formatted everything, couldn't remount anything

2nd - For some reason, 2.5.1.2 recovery just vanished, couldn't boot, house caught fire. Blah.

3rd - Smooth. Everything seems to be going well. Except root.

k thx bai
[Epic 4G Android Development] arashed31:
Yea Clockwork 2.5.1.2 disappears on its own for some reason. Once you have ext4 installed and 2.5.1.2 disappears you're screwed. 2.5.1.0 can't flash, back-up, or restore anything it seems.
[Epic 4G Android Development] amosher13:
i havent tried this with cm6, but the issue with 2.5.1.2 "disappearing," it might actually still be there. in 2.5.1.0, go to advanced > reboot recovery. you might get 2.5.1.2, i'm not sure where it installed, but ROM manager reboot to recovery foes to 2.5.1.0 but adb reboot recovery and reboot recovery from 2.5.1.0 brings up 2.5.1.2.
[Epic 4G Android Development] chaostrodamis:
Is this kernel clockable
[Epic 4G Android Development] Dameon87:
Meh. Look into it tonight. I used noobs cm initramfs as a base.
[Epic 4G Android Development] arashed31:
Nope. It's stock with ext4 support.
[Epic 4G Android Development] onilink67:
no 3g working with this kernal going with the stock RFS and CM6 works fine
[Epic 4G Android Development] smoothone:
A google search brings up tons of links.
[Epic 4G Android Development] smoothone:
Reboot recovery from 2.5.1.0 did not bring up 2.5.1.2 for me. It hangs at the Samsung screen. I had to Odin again :(
[Epic 4G Android Development] Dameon87:
Ill get back to you on that. Must be a problem with the initramfs. Ill look tonight.
[Epic 4G Android Development] daddymikey1975:
Not to sound too ignorant, but could you please explain this in a bit more detail.. I certainly don't understand and I'm not trying to be snarky, I honestly don't understand LOL

how or why would EXT4 reduce the lifespan of the NAND memory ? how or why is EXT4 worse for it than RFS ?

Again, not being a smart ass, just looking for an explanation in layperson's terms so that I can understand the 'physics' behind file systems or whatever..

Thanks gTen :)
[Epic 4G Android Development] Kcarpenter:
Reduces life span..supposedly...because of an increased amount of I/o disk operations. NAND has a limited number of either reads or writes..or both...i can't remember.

Also RFS is propriatary, meaning only they work on improvements when they want to. Ext is widely used by most if not all modern linux distros. Meaning it had better support.

Also I don't think rfs has journaling, which is like a transaction log in case **** hits the fan, there is another...copy...so to speak. But its not a back up so don't expect to be able to restore your journal. Its more for the disk when it realizes it has efd up.
[Epic 4G Android Development] onilink67:
In theory is the key here as thats the main argument against SSDs but no one has done enough I/O to prove/dispute it.

Also is anyone else having a 3g issue with this kernal? WIFI works fine and it was working fine before I made this change. very interesting.
[Epic 4G Android Development] daddymikey1975:
Thanks for the informative post.. <goes to read some more on this topic> :)

EDIT: found the following:

So I'm wondering if anyone possibly knows what the P/E of our NAND chips happens to be ?? How many times during a day does a read/write operation happen ? Should we be worried about premature failure of the NAND chips ??

More curiosity :)
[Epic 4G Android Development] Dameon87:
In short... No.

In all honesty, the nand chip in our phones will probably last (with RFS) over a course of 5-7 years+. IF the theory is correct w/ EXT4 (and journaling filesystems), then we should expect to see maybe a year to two MAX decrease from this estimate.

In simplest terms; in the lifetime that YOU will be using the phone, it likely isn't going to die because of nand failure from write operations.

The normal use life (as in you actually using the phone before purchasing/using another) is about 1-2 years max. Your nand is probably never going to burn out in its shelf life.
[Epic 4G Android Development] daddymikey1975:
Excellent explanation sir. Thanks for this. :)

(gonna grab some EXT4 goodness tonight when i got more time to do it properly)
[Epic 4G Android Development] Randy_T:
I can confirm the same behavior in my attempt to get to Quantum 2.5 with Ext4. I ended up:

- flashing back to stock DK28

- boot

- applying One Click Root 2.5.5

- boot to recovery

- Flashing Quantum 2.1

- boot

- boot to recovery

- applying One Click Ext4

- Flashing Quantum 2.5 and KERN-Ext4 (without rebooting)

- boot

That gets me on a running Quantum 2.5 phone

EDIT: I can now also confirm that I have a phone that has CWM both 2.5.1.0 and 2.5.1 2 installed. Going into "Advanced" and selecting "Reboot Recovery" reboots into 2.5.1.2.

Any suggestions on how to resolve this?
[Epic 4G Android Development] Randy_T:
FWIW, I run an SSD in a laptop with OpenSuse. The Ext4 filesystems were created without journalling and I do mount with 'discard' option in /etc/fstab as well as setting vm.swappiness = 1 in sysctl.conf. Those options along with using 'deadline' scheduler keep disk i/o to minimum. Not sure if same philosophy is being applied to the Android Ext4 enviro's or not.

Really no need for a journal on an SSD.
[Epic 4G Android Development] Whosdaman:
Please post source Dameon, or I have no choice but to delete this thread.
[Epic 4G Android Development] ragnarokx:
Isn't this kernel just a modified DK28 kernel, for which the source code is not available?
[Epic 4G Android Development] Dameon87:
Correct. I cannot release source for something I do not have source to.
[Epic 4G Android Development] Whosdaman:
O ok....fair enough
[Epic 4G Android Development] Dameon87:
The only thing modified in this kernel, and let me add the only thing modifiable in any froyo kernel we have to date, is the initramfs.
[Epic 4G Android Development] MysteryEmotionz:
Not to bash you out get you in troupke but a question of curosity.

dosn't cynagon use there own kernel instead of a stock kernel for the epic like every other phone? If that's the case the source has been released
[Epic 4G Android Development] AndrewZorn:
not for DK28/2.2 is hasnt
[Epic 4G Android Development] mkasick:
Has anyone actually measured an increase in block I/O operations? This is fairly easy to do using sar or iostat from the syslinux package. Would be nice to see a numerical comparison of RFS and ext4 here. Otherwise the claim that ext4 increases write ops is dubious.

NAND memory has a limited number of block erase cycles, and it's necessary to perform an erase when modifying a previously-written block.

The "openness" of a file system isn't entirely related to its development activity. A high-profile proprietary file system may easily see far more development than an open source file system of limited interest. You're right that ext4 is widely popular compared to RFS, but even then much of ext4's development is still driven by a small group.

The greatest constraint in RFS's development is its backwards compatibility with FAT. FAT isn't a particularly well designed file system, and while it was appropriate for disks 25 years ago, it's been an aging relic for at least the past 15. It's only still around because it's easy to implement, eveyone understands it, and it's compatible with Windows.

RFS does use a journal, this is actually its primary contribution to FAT and hence, the name "Robust File System".

Also, most journaling file systems only journal metadata. This preserves consistency of the file system across unexpected power interruptions (or kernel panics). Actual data can easily be lost though, particularly during file modifications where block writes may be significantly delayed after the journal update. I'm not sure if RFS does metadata journaling only, or data journaling too.

Err, this is what sector ECC is for. Has nothing to do with journaling.
[Epic 4G Android Development] MysteryEmotionz:
Cynagon usally uses there own custom kernel. Not a manufactures modified kernel. Cynagon is aosp and built from aosp source. The only thing that are phone should be using is the dk28 modem.
[Epic 4G Android Development] bigdbag:
Confused. So does this kernel actually work correctly with root and cwm included? If not, update?
[Epic 4G Android Development] onilink67:
Never worked well for me I had no 3g with it installed
[Epic 4G Android Development] Dameon87:
First working CM6 kernel with RFS AND EXT4 support.

It will boot and load properly if you are running the EXT4 mod, or if you choose to stay on RFS.

The updated code has been pushed for use in Cyanogen Mod, and SHOULD start appearing with this kernel =]

Also fixes root from previous kernel.

http://efragtv.com/android/CM6-EXT4-RFS-KERNEL.zip

This also fixes wifi and su =]
[Epic 4G Android Development] readermo:
stupid question time:

when flashing cm, there are 2 parts: the rom and the google apps. do we flash this kernel before or after flashing the google apps?

thanks!
[Epic 4G Android Development] Dameon87:
Doesn't matter. Either order will work fine.
[Epic 4G Android Development] akijikan:
Thanks so much.
[Epic 4G Android Development] visions138:
I flashed the google apps and nothing no apps nothing on ext4 .. on rfs it worked fine .. Ok i flashed it again and it worked ... must be the beer
[Epic 4G Android Development] mattallica76:
Sounds like you were in the wrong recovery. Make sure you boot into the modified recovery.
[Epic 4G Android Development] visions138:
I flashed it in .2 then rebooted in .2 but it did not work till the 2nd time.... oh well what Kernel # do you see on your phone ? ... FYI the new CM6 12. whatever you can boot direct into .2 its super nice =) and it loves the gingerbread keyboards .. Put the lotion in the bucket ....
[Epic 4G Android Development] Shiggity:
Okay so my phone is stuck on "Installing update..." when I go to flash the latest PB (PB14). How long does it usually take? It's been quite a few minutes.
[Epic 4G Android Development] EliteMachina:
Have the 3G connectivity issues been fixed, or were those isolated problems?
[Epic 4G Android Development] gharris040604:
Dumb question are we flashing roms in

.2 recovery?
[Epic 4G Android Development] Dameon87:
3g works fine.
[Epic 4G Android Development] mattallica76:
Yes, .2 recovery.
[Epic 4G Android Development] ebejoe:
have any of you tried out a quadrant score. i got over 2400 with cm6 and ext installed. Quick question though, has anyone tried checking if it is ext4 by typing adb shell mount? It doesnt read what i would think it should.
[Epic 4G Android Development] Dameon87:
Update. Fixed for pb15+.

http://efragtv.com/android/CM6-DUALFS-v1.1.zip
[Epic 4G Android Development] *AndroidMaster*:
i have a question...wen i go to flash the new CM6 build in the recovery .2..it lets me flash the rom..then it reboots my phone and wen i try to go back into .2 to flash the kernel it doesnt let me back into .2..it goes back to the stock clockwork...wen i hit reboot recovery it takes me to the same stock clockwork recovery...and gives me a little error about recovery log or something..can i get a lil help pls
[Epic 4G Android Development] ebejoe:
the same thing happens to me. all i can do to get out of this is odin my phone and go through the whole process all over again
[Epic 4G Android Development] *AndroidMaster*:
Yea me too..that sucks
[Epic 4G Android Development] Sloopjoshb:
Am I to understand that with this kernel I can run any ext 4 required rom with rfs? Just wondering if I saw that right.

Sent from hell via my epic android.
[Epic 4G Android Development] plapczyn:
flash is not a radioactive element...lifespan is measured in mean erase cycles until failure. :)
[Epic 4G Android Development] LucJoe:
Quick question, is ext4 required for the newer builds of CM or can I just flash prebeta15.3 over prebeta12, then flash this kernel and go (with my RFS filesystem)
[Epic 4G Android Development] bigroof:
Looking for a way to get back to .2 advanced reboot recovery just reboots .0.
[Epic 4G Android Development] bigroof:
Ext4 is not required.
[Epic 4G Android Development] fkhaten:
im confused every time i try flashing i get stuck in a boot loop
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] NeXuSqtek:
Hello, I have a problem with my HTC HD2, it doesn't want to start. When I press the power button I feel only a tiny vibration, but only when the device is connected to a power source. Without power source it won't do anything.

Things that I've done : The phone was stuck in bootloader with the error "Upgrade ROM Code Error , Please try again", it had SPL 2.08.0000 so I've flashed HSPL 2.08. After that my device wouldn't start.

Things that I've tried : Take the battery away from the device , connect the device to a power supply,wait 5 minutes then put the battery back on.

Hard-Reset.

Tried to enter bootloader.

Also tried to flash the stock rom, before flashing HSPL 2.08. My device was stuck at 0% with no progress what so ever.

Please help !
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] ktod_16:
hello

I just both a new HD2 from Amazon and the thing don't want to start.

I started first time and it crashed at the training for keyboard. I removed the battery and it didn't want to start again. I did the reset, hard reset but it stay with a white screen and htc logo on. Is not doing anything.

I tried also to start it without SD-card and phone card but no change.

What to do should I send it back????

thank you.
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] samsamuel:
battery out, connect to wall charger and turn charger on, insert battery, dont touch it for a good half hour. dont worry if charging light doesnt come on straight away.

It sounds like the battery is possibly over discharged. doing as i listed 'should' let the phone start charging without trying to turn itself on.

yes send it back, silly to try and fix an error with a brand new phone. (Also, hijacking threads is considered bad manners. :) )
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] NeXuSqtek:
Thank you very much samsamuel,by the way I have one more question to ask : Is it possible to brick the device by simply flashing HSPL 2.08 ? (SPL 2.08.0000 was installed)

I will try your method and I will keep you informed on my progress.

Thanks a million.
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] elgeor:
Hi!Unfortunately i have a big problem with my hd2.I have hacked it with hspl3.I have it 4 months now and i have flash to it about 10 roms.After i flashed the last rom suddenly my hd2 closed and when i opened it showed a white screen.I tried

to do reset to last official greek rom of htc(HD2_RUU_Leo_HTC_ELL_1.66.482.1_Radio_Signed_15.30.50.07U_2.06.51.07_Ship)changing the name of RUU_signed.nbh to LEOIMG.nbh and put it in to sd card.And in 5% shows me "update terminate,update fail,radio v2 fail" and then when it starts shows white screen again.I can get only in bootable mode (that mens in the screen with the colors ni wich you can see wich spl you have)How can i fix my hd2 pls?
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] samsamuel:
it's highly unlikely, but as with anything of this nature nothing is foolproof

bad news for you i'm afraid. i'm not aware of any successful fixing of radio update error.
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] NeXuSqtek:
Ok,thanks, I hope that the battery is the source of this problem,not the device .
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] NeXuSqtek:
I went today at a local service,they've told me that the battery is 100% charged. Unfortunately the problem is with my HD2. I left it in service and I will pick it up tomorrow repaired I hope. Thank you for helping me.
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] netvpn7:
YOU GOT WRONG HSPL you should have 2.08. 6666 etc not 0000... I hope this helps
[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] shubh.27hd2:
Nice thread