[Sable] Zoltair Wright:
UPDATE

The newest 610-series Windows Mobile 6.1 ROMs may be found HERE. Many thanks to jpmatrix972 for collecting these ROMs and hosting them for the community.

If you've never installed a new ROM before, I'd recommend first downloading and installing the new 0.89 radio, in order to improve signal acquisition and overall radio performance. Backup ALL your data on the device before you run this! If you have any problems with this process, read more about radio problems and installation in this thread. (A big thank-you to hipppo for posting these files!)

Afterwards, go here, and download the flash.dio file (which is the ROM itself). For information on how to install the ROM, please read my second post, below.

Once you're finished installing the new ROM, you should install this file in order to fix a bug with call waiting. After that, you're all done! Enjoy WM 6.1.

(If you miss having a proper D-pad on your iPAQ, there is a work-around program here. And if you need to get your hardware keyboard working with Opera Mobile 9.5, look here.)

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Everything below is older material that I don't personally recommend.

OLDER POSTS:

Hi guys! I got a request to upload the 600-series ROMs from PDAclan.com, which is a great site but it's all in Chinese. I'll be posting the ROMs here with their descriptions. Check back often, I'll be adding more as I finish their translations. The descriptions below aren't my words, but those of the ROM creators. I'll put any notes [like this]; anything written in English goes in quotes "like this".

To see the original posts, head over here.

Please read post #2 for flashing instructions and a disclaimer.

If there's no link yet, just be patient and I'll post it shortly.

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September 4th

HP612_WM6.1_OS 5.2.20737 ROM: Simplified Chinese - Elegant Black - Clean: by NGSEE

Recently, the base ROM has been updated very often, many thanks to acwan for providing the transplanted base.

Here's acwan's explanation of the new base:

Supposedly the previous 20721 release, with the new AKU 1.4 base, was a "beta" version. This one is AKU 1.4 "basic". In terms of speed it feels about the same as 20721. Its software compatibility is pretty good, under this base you should be able to run software that is usually restricted to specific devices. The bundled software is about the same as the previous Clean 20721 Simplified Chinese release.

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August 29th

HP612_WM6.1_OS 5.2.20721 ROM: Simplified Chinese - Elegant Black - Clean: by NGSEE

Here's the Simplified Chinese version! This is from the AKU 1.4 base ROM, to which I've added "touch" capability, which is also called screen swipe capability. It means that where you previously used the stylus to tap up or down, left or right, now you can instead use your fingers to swipe the screen - you'll see what I mean when you try it yourself. [I think he means he's included the HTC TouchFlo scrolling.] Let's see (it's been a while since I updated)... comparing this release to the previous one (20273), where I updated to the official 1.01.04 OEM, and updated the XIP & "boot", but the software was the same as before. In contrast, this time I didn't really feel like including the official "Streaming Player" or the dialer "Band Switch," friends that need them can go download the first three attachments in dxvolution's thread and install them themselves. (http://www.pdaclan.com/thread-17615-1-1.html). [I've downloaded these three files and attached them below.] There's basically no problems with using this ROM. Much like the English version released yesterday, if you don't have any recently used programs in the Start Menu, the cursor will turn white when you move it to that space. I don't know if this is a bug or a new feature of AKU 1.4.

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August 28th

HP612_WM6.1_OS 5.2.20721 ROM: English - Elegant Black - Clean: by NGSEE

This one is using the newest 20721 base (AKU 1.4), the XIP and SYS were all transplanted from the Samsung I-908 Hong Kong edition English ROM, served up hot and fresh. As for software, there isn't any difference from the past clean releases, I've kept using the newest official HP 1.01.04 OEM. This time I've even updated the "boot", I can't feel any difference, friends that want to try something new can give it a shot.

PS: There's a small bug, if the list of recently opened programs is empty there will be a white bar, expect a fix. Eh, I figure there aren't that many people who have that space empty anyway.

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August 27th

HP612_WM6.1_OS 5.2.20296+20275 ROM: English - Elegant Black - Clean: by kkwy

The XIP has been transplanted from the Ri Da [don't know if this is a name or a brand] 20296 base, the OEM part has been updated to the newest official HP English ROM 1.01.04, and the SYS has been transferred from the "Diamond" 20275 and NGSEE's 20273 English - Elegant Black - Improved ROM. As for the software, it's about the same as the last release, MMS should be fixed now.

Standard page pool is 12 MB.

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August 24th

HP612_WM6.1_OS 5.2.20273 ROM: English - Elegant Black - Improved: by NGSEE

Just like the 20273 in Simplified Chinese, the XIP is ported from Xiao Qiao's 20273 base, while the OEM has been updated to HP's new official ROM 1.01.04. After flashing the OS version will appear as 1.01.04. The SYS was ported by someone on xda-devs (I've forgotten their ID, oops...)

ROM Specs:

1. OEM is the newest official one; in addition, the streaming player, battery manager, and HP Shortcut have all been upgraded.

2. Battery level is displayed as a percentage.

3. Used a Diamond skin for WMP.

4. The ROM has been made as clean as possible; software includes the official standard dialer, standard English keyboard as well as Samsung fullscreen handwriting 2.0 [for Chinese input], Office applications and Live Messenger, a small reset tool, a Chinese dialer [?], and a new version of USBtoPC.

5. Improved appearance of the system icons, which were taken from xda-devs

6. Standard page pool is set at 16 mb.

Many thanks to PDAclan's niezher for testing this ROM!

Not much else to say

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August 18th

HP612C_WM6.1_OS 5.2.20275 + 20273 ROM: Simplified Chinese - Elegant Black - Clean: by kkwy

These past few days I've been researching the HP 612c's XIP and OS's "DIY" [Do-it-yourself?]

I've grabbed the newest IPAQ 1.01.04 ROM, and upgraded its XIP to version 20275

Then I grabbed NGSEE's HP612_WM6.1_OS 5.2.20273 Simplified Chinese - Elegant Black - Clean ROM and took out the OS part, the OS's OEM section I used is the updated IPAQ 1.01.04 one.

After I finished it, I've used it until now without problems.

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August 17th

HP612_WM6.1_OS 5.2.20273 ROM: Simplified Chinese - Elegant Black - Clean: by NGSEE

Recently I haven't had anything fun to do, I was itching to make a 20273 ROM. I've been using it and I figure it's pretty good, friends who want to try something new can give it a go.

It's a pretty clean ROM, I've minimized the cooked-in programs. Software included is pretty much the same as the 20273 English version. [See above.] I've removed the HP theme, now the standard theme is WM6.1 green, standard page pool is 16 MB, Simplified Chinese MMS 4.2.8.10, and that's about all there is to it.

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The attached files are for the August 29 release.