...that is a fantastic question. I'll see what I can dig up on that.

In the meantime, anyone who knows this answer is welcome to chime in (pleasepleaseplease). =P

Wirelessly posted (8700c: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) BlackBerry8700/4.1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102)

I had put Yahoo to GO on my 8700 C. Yes on Cingular and now this installed OTA and ran with no issues.

Very snazzy. I'm not all that familiar with Yahoo! Go, but perhaps I'll be testing it out later on.

I'm still looking into it, gnrxx. Thanks for your patience, and sorry for the delay.

I don't yet know if it goes through the corporate network, per se; I don't believe it does, as it doesn't require being on a BES to function. However, I do know that if you're on a BES, then the BES administrator may need to enable Y!M traffic.

More updates as further events warrant.

I have confirmed that the Service Book is there and I can only imagine that Yahoo! Go added it, so that is quite frankly an easier work around.

Thanks.

I shall make a note of this. =D eProps to you, my friend.

I gave this approach a shot. I loaded Yahoo Go, then tried the Yahoo Messenger OTA, with no luck. I did not get the required Service Book

Interesting. I have no idea how that Service book would have gotten on my BB otherwise.

Hmm. Oddness. I couldn't tell you, either. Depends on your carrier, maybe. Like I said above, T-Mobile will automatically provision the service book upon installing Y!M, whereas Cingular will not. From my own knowledge, it doesn't seem to matter as to whether or not one does the OTA installation or the desktop/USB/webloader installation, but that just appears to be how it works.

Another very easy way:

1. Get a non-Cingular BB (from a friend or family?)
2. Install YiM on it
3. Use "Switch Device" on Desktop Manager to move your service to this non-Cingular BB, making sure you also transfer application data by checking the appropriate checkbox
4. Switch back to your Cingular BB (follow same steps as 3)
5. The "BBFS2 [YHO]" Service book is now copied on your Cingular BB
6. YiM works perfectly on your Cingular BB!! IM away

This seems like a much easier solution.

I just tried the Yahoo Go! approach, and I did not get the service book.

All right ... well, then, in that case, we should probably stick with the above-certified methods of success.

You're wicked! it works!!

Keep up the good work.

Haha, sweet. Good to know. If anyone has any real difficulties with it, or learns anything as far as additional functionality or capabilities, feel free to PIN me or add me to your BB Messenger.

Anybody else try the Yahoo Go approach? Just curious?

Spencer I do have a little problem here.

First part of my problem was resolve already but I'm having problem signing in on yahoo. I've got my service book and it say:

Record Type: Active
Name:BBFS2
UID:NAYH01
CID:YHO

USER ID:-1
DSID:

Gateway IP: <No Gateway>
Description: Yahoo! Messenger

If I try to sign in to yahoo it only until

" signing in as blah blah bla

connecting to Yahoo!

Cancel sign in"

and that's it nothing more.

I even wait for an hour but nothing happen.

I suspect I'm downloading corrupt files from www dot blackberry dot com\go\yahoo coz when I tried to go and check yahoo module properties I'm getting an error msg something like "uncaught exception: Java.lang.illegalargumentException"

Anyways hope somebody can provide working .alx that I can intall it thru Desktop Manager.

I have found out another problem on my side. I can't get back service books from my bis account (activation msg)since I don't have email account on my bb. I'm just using Opera mini. I even doubt the registration process from hrt is going thru.

Pleaseeeee help!!!!!

Ahh, well, you need actual BlackBerry data services on your handset for this to work, not just the WAP services.

Awesome! worked perfectly.
My wife will be so happy she can continue to bug me at work all day on my new 8700c
Best, Rich
Cingular/at&t cell-ops. NEPA (HARLY) region

Very good, very good. =)

Btw, 100 get! :D

FYI:

On my Cingular Blackberry 8800 all I had to do was restore the IPD file and it immediately allowed me to get Yahoo Messenger online.

The article on how to remove the synch service book is no longer available. Can someone tell me how to do it so I can get yahoo! IM working on my 8800 with Cingular?

Thanks,
G

Absolutely. Simply go into Settings > Options > Advanced Options > Service Book and highlight, then delete the Desktop Sync service book, then synchronize, and regenerate encryption keys via Desktop Manager. You'll be good to go from there; just make sure that Y!M is enabled via BES, too.

By the way, on an unrelated note, thank you all very much for all the views and replies so far. I'm glad you're able to make use of this stuff. =]

RIM YM on my 8100!! Thanks!

I am able to login and chat, but I appear as offline to everyone else. I've tried various combinations of away and available status, and yes the "Sign In as Invisible" is not checked.

Anyone else seen this?? Any ideas? Kudos, JT

That is definitely very odd. I haven't run across it myself, but I'll try to look into it. Have you tried uninstalling/reinstalling Y!M?

Re-install works! I guess that should have been my first course of action Thanks for your help!!

Aww, haha, no problem at all. Glad I could help. =)

I got "Cannot restore read-only database(s) on device" so I had to delete the desktop [sync] and desktop [cical] service books, then it worked. Thanks to Spencer CDS for being smart.

How to get your BES Service Books without hassling your BES Admin

This should work regardless of your client and host email server (Exchange, Groupwise, Notes), but my experience is with Outlook/Exchange.

If you have Desktop Manager installed and set up to work with the Outlook, and you've deleted or lost your [Desktop] service books, simply start Outlook in Online/Connected mode, then start Desktop Manager and plug in your BlackBerry. Even with all synchronization turned off in Desktop Manager, it will see your BES and Exchange accounts (over the network connection) and see you're missing the service books and pull them down.

As long as you have a network connection to both your Exchange server and the BES, this should work.

How to generate a new Encryption Key without Desktop Manager

In looking through the posts, I saw a couple of posts related to generating a new encryption key.

Although most reading this post will be running Desktop Manager and be able to generate a new key there, I thought I'd mention that you can also generate a new encryption key on the BlackBerry itself - at least with the 4.2 OS.

Simply go to (Settings/Tools -->) Options --> Security Options (--> General Settings). Scroll down to Services, Click the Wheel or Menu button and select Regenerate Encryption Key. Items in parenthesis may or may not appear on your BlackBerry depending on your theme and carrier and OS version.

You must have [Desktop]... service book selected (highlited) when you bring up the menu or the option will not appear.

cna someone help me get my yahoo to work on a pearl. I am new to this please? hit me up at xcroakthedjx on yahoo or firefuelprod on aim

Incorrect - my mistake

this only works if the bb is unlocked.

worked nice and easy the first time, thanks so much for creating and sharing the how-to...... peace!

I followed all the instructions a couple of months ago to get YIM working on my pearl with cingular by installing a service book or whatever via the desktop manager. It worked fine until recently when it started hanging on:
Signing in as xyz
Connecting to Yahoo!
Cancel signin

For a couple of weeks now that has been happening, but if I kept hitting cancel and then trying to sign in again it would eventually let me sign in. Now I can't get in no matter how many times I try. I have tried pulling the battery for a cold reboot too.

Any suggestions? Is anyone successfully signing in from cingular currently?

Thanks,
-K

Thank you so much!

You're an angel. I am a grandmother. I got my pearl for mother's day and I was just lacking one thing. Now it is perfect. Cingular should be ashamed. What would I do without the forum?

My mother's day gift is now perfect. Thank you.