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Old 05-24-2005, 04:40 PM   #1 (permalink)
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Exclamation 10 Steps to Downgrade to 3.8 from 4.0 OS on 7100

Please Login to Remove!

EDIT: Fixed link

1.
Download 3.8 OS install file
http://www.t-mobileapps.com/download..._3_8_0_128.exe

2.
Go To Control Panel – Add/Remove Programs - Uninstall Desktop Manager 4.0

3.
Go To Start - Search for vendor.xml file and delete

4.
Run 3.8 OS install (downloaded from step 1)

5.
Allow it to downgrade all 7100 applications (including apps like breakbreaker, browser, etc)

6.
Allow software to Backup your data from your 7100 to your PC. On the last step of the OS install it will try to restore backup files and will HANG –
Unplug and plug-in the 7100 on the USB connection to get it to exit the program.

7.
Reinstall Desktop Manager 4.0 and Run program
(Downgraded version of 7100 should sync with software, if it doesn’t repeat steps 2 and 7)

8.
Select “Backup and Restore” icon – Now select Restore – choose backup file (created to backup data in step 6). now CANCEL restore operation
(if you don’ t cancel in time it will lockup on Bluetooth options, repeat steps 2 and 7).

9.
Select Advanced (The data file will already be loaded) – In the Left Frame Select “Bluetooth Options” and Delete it. Now Save/Exit the advanced menu.

10.
Select Restore (again) – this time run the restore function. It should upload all your data to your 7100 without hanging.

It may take up an hour for your internet and phone to be fully operational (after about 90 minutes and a few hard reboots I was up and running).

The 7100 will run and sound better than ever, but BES users will lose wireless sync function as 3.8 does not support that feature.

Please let me know if any clarification is needed on these instructions.
thanks,
AP

Last edited by adamg187 : 05-25-2005 at 02:01 PM.
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Old 05-24-2005, 05:31 PM   #2 (permalink)
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Can someone elaborate on "wireless sync function." I am not sure what this is. I reserve the right to say Doh! later...
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Old 05-24-2005, 05:35 PM   #3 (permalink)
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Quote:
Originally Posted by texasag90
Can someone elaborate on "wireless sync function." I am not sure what this is. I reserve the right to say Doh! later...
I think it allows BES users to have over-the-air sync of their calender from outlook.
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Old 05-24-2005, 05:39 PM   #4 (permalink)
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Well, that is sort of why I am asking. I downgraded to 3.8, and my calendar sync is still working great...
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Old 05-24-2005, 11:07 PM   #5 (permalink)
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Really? what about contacts sync? Is it still working wirelessly?
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Old 05-25-2005, 01:21 AM   #6 (permalink)
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No, but it never was. It is not supported by our BES guys. Not sure why (I did not actually know that contact sync was possible).
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Old 05-25-2005, 02:02 AM   #7 (permalink)
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The link doesnt work to the old software
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Old 05-25-2005, 02:03 PM   #8 (permalink)
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Quote:
Originally Posted by djseto
The link doesnt work to the old software
Should work now.. thanks
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Old 05-25-2005, 02:27 PM   #9 (permalink)
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Quote:
Originally Posted by adamg187
EDIT: Fixed link

8.
Select “Backup and Restore” icon – Now select Restore – choose backup file (created to backup data in step 6). now CANCEL restore operation
(if you don’ t cancel in time it will lockup on Bluetooth options, repeat steps 2 and 7).

9.
Select Advanced (The data file will already be loaded) – In the Left Frame Select “Bluetooth Options” and Delete it. Now Save/Exit the advanced menu.
Will this cause me to lose Bluetooth headset support????
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Old 05-25-2005, 02:32 PM   #10 (permalink)
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Does the phone really sound perfect now with 3.8?
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Old 05-25-2005, 06:49 PM   #11 (permalink)
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This sucks. I have done steps 2-7 three times and it still wont synch with desktop manager 4.0...anyone know where I can download desktop manager 3.8?

EDITED: Fixed

Last edited by djseto : 05-25-2005 at 07:00 PM.
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Old 05-25-2005, 07:28 PM   #12 (permalink)
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Now it will NOT pair with my bluetooth headset. it detects it, but when I select it to pair, it never prompts me for the pair code...ahhhhhhhhhhhhhhhhh
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Old 05-25-2005, 07:39 PM   #13 (permalink)
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Quote:
Originally Posted by djseto
Now it will NOT pair with my bluetooth headset. it detects it, but when I select it to pair, it never prompts me for the pair code...ahhhhhhhhhhhhhhhhh
i saw on another post that ajstan99 downgraded to 3.8 because he found that his bluetooth headset was louder under this OS. You may want to PM him to see if he has any tips for you (sorry i don't have a bluetooth headset yet and can't help).
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Old 05-25-2005, 07:42 PM   #14 (permalink)
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Quote:
Originally Posted by djseto
Will this cause me to lose Bluetooth headset support????
It should result in the default 3.8 bluetooth setting remaining on the phone.
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Old 05-26-2005, 10:50 AM   #15 (permalink)
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Quote:
Originally Posted by richard371
Does the phone really sound perfect now with 3.8?
Well, in my case, people stopped complaining.
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Thanks, Mark
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Old 05-27-2005, 03:08 AM   #16 (permalink)
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Question for 7290 also?

Quote:
Originally Posted by adamg187
EDIT: Fixed link

1.
Download 3.8 OS install file
http://www.t-mobileapps.com/download..._3_8_0_128.exe

etc...
AP
Ok, I have a 7290- will this procedure work for that device as well?

Also, can you elboarate on step #5,
"5.
Allow it to downgrade all 7100 applications (including apps like breakbreaker, browser, etc)"

Are you saying that it will ask me if I want to down grade the apps?

Thanks,

-Marc
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Old 05-27-2005, 07:42 PM   #17 (permalink)
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Now my o2 theme fonts look like crap no matter what I set it to.
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Old 06-04-2005, 11:14 AM   #18 (permalink)
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I have a problem. I have completed steps 1 through 4, but that's where everything stops. Nothing ever starts to downgrade, no Backup, etc. Am I supposed to do something? I have the BB plugged in to my computer when I run the install. Should I do something?

Last edited by TXBBUSER : 06-04-2005 at 11:16 AM.
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Old 06-05-2005, 12:36 PM   #19 (permalink)
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Just want to let you know that I think downgrading may in fact erase the message service. ie. you can no longer send email from your device. Has anybody else have the problem? I am going back to 4.0 instead and see if that corrects the email problem.

I downgraded by wiping the device using the javaloader. I have not placed any long calls on the device so I cannot confirm whether the process would improve the dropped calls / reboot issue. I am inclined to forward my calls to a land line and just use it for emergency (short calls) and the email functions.
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Old 06-05-2005, 01:50 PM   #20 (permalink)
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Default clarification..

I am using a 7100t in Central New York with T-Mobile
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