Dell Streak no signal after up rom - Streak 5 Q&A, Help & Troubleshooting

Please help me!
Dell Streak no signal after up rom.
I tried to recover by I tried to recover by QDLTool3rd_20101022_GAUSB1A130500,but but still be so.
Please help me!

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The funny thing is I still have signel bars that apear to work and when i go to
Setings>wireless & networks>mobile networks>network operators.
I can scan and picks up my local mobile network carriers,
When I choose VNM and Viettel who ive got my contract with it says:
Registering on VNM and Viettel Network
then:
Unable to connect to this network at this time. Please try later

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Are you sure the ROM you flashed is compatible with the region settings of your network carrier?
You may have to flash an update.pkg that is compatible with your area. Don't know where you are so can't tell you which one.

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I use a AT & T and was unlocked.
before the machine I normally use. But after my ROM (I do not remember exactly what ROM version), the wave may not even have inserted the SIM.
When I was up another faulty ROM as follows:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

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Some body helf me????????????????

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Did you try redownloading the rom and replace the one on your SDCard?
Link to download the stock official rom - http://forum.xda-developers.com/wiki/index.php?title=Dell_Streak#Official

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duongthanhcong said:
Some body helf me????????????????
Click to expand...
Click to collapse
Did you see this multiflasher tool. I used it yesterday in my quest to bring my streak back from the dead.
http://forum.xda-developers.com/showthread.php?t=1000455
Also you should take a look at the Bricked Streak thread in this section.
I actually used the QDL tool to free my Streak from a continuous restart and then used the multiflasher to install one of the stock roms. My phone is now using 351. I think I need to root it, but it's working as advertised.

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I have followed all instructions as people. But it had no signal

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I think I have a few interesting people when I press * # * # 307 # * # *

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up.........................................................

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You probably aren't using the right recovery.
Sent from my Inspire 4g using XDA Premium App

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use the multi flasher tool in the dev section to flash the 318 recovery then flash to which ever pkg u want

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If you are going to install a stock ROM from recovery as an update.pkg file you should flash the recovery that matches the ROM you want to install. When you reboot you must not let the phone restart normally because the recovery will be overwritten if it not the one matching the current ROM installed, you have to go right into recovery mode and then apply the update.pkg that matches the recovery.

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i do have same problem with his phone with no signal but i can make an emergency call (112)... i already tried flashing recovery and baseband with version 309 and 318... but everytime i update with stock rom 309 and 318 it always got an error just same with his phone..
any best way to resolve the no network problem?
thanks..

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same with me...del steak 5...i did flash but still no signal..no service issue...
any updates..plz share