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Unlocked Iphone has no signal

After i downloaded ultrasn0w, none of my sim cards work, they say no signal and network loss.

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  • yungd_32 Oct 06, 2009

    sorry, im new to all this but is 05.11.07 the right firmware?

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2 Answers

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Try a firmware restore, a guide on how to do that ishere: iPhone Firmare restore. If that fails it looks like you need a new logic board which in theory you can replace yourself. Here's a guide on how to disassemble an iPhone. Maybe a tech savy friend can do it for you. If you want to have somebody else do it for you there are third party iPhone Repair Services.

Posted on Jul 19, 2010

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You must verify that you have the proper baseband on your device..if its the newest one, it will only work on the att network

Posted on Oct 06, 2009

  • Remote Computer Rescue

    sry for the delay in the response......the firmware doenst really matter all that much but its the baseband that you are looking for....its on the same settings screen as the firmware but at the bottom......you must be running baseband 2.28......if you have 2.3 then you cannot unlock your phone properly and it will only work on the ATT network......one alternative though is to downgrade your baseband back to 2.28 so you can unlock it...........REMEMBER!!!!!! IF YOU DOWNGRADE OR JAILBREAK YOIUR PHONE YOU CANNOT UPDATE YOUR DEVICE THROUGH ITUNES OR YOUR PHONE WILL NO LONGER WORK PROPERLY!!!!!!! Although you can still use this application for transferring data. simply turn off automatic updates and select no when it tells you there is an update to install or download.....


    here is a link that you can use to download this recently developed tool.
    GOOD LUCK AND PLS RATE THIS POST

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1 Answer

Iphone says no sim and no secerice


What iphone do you have .. and the no sim and no service problem is causing cause you do not have a sim card on your iPhone or you don't have a sim card that iphone supports it , What you have to do "Ask someone who knows how to use iphones and jailbreak them 'or search on youtube how to jailbreak iPhone', after jailbreak go to cydia and add a source of ultrasn0w 'search on google for that source' after you install ultrasn0w reboot your device then you can see your Sim card it's connected to your sim carrier / There are plenty of solutions on how to fix your problem , you better ask someone who knows how to use it your friends or someone on your family

Oct 13, 2013 | Cell Phones

Tip

How to Unlock iPhone 4 Since Apple is selling unlocked iPhone 4s...


How to Unlock iPhone 4

Since Apple is selling unlocked iPhone 4s internationally, it is only the United States users who are still locked on AT&T network. So if you want to use your new iPhone 4 on networks other than AT&T, like T-Mobile for example, you can use this newly released Ultrasn0w 1.0 software to unlock your phone.
Simply follow the instructions posted below to unlock your iPhone 4 on iOS 4.0.1 / 4.0 on 01.59.00 baseband.
NOTE: T-Mobile US users will have to disable 3G by navigation to: Settings->General->Network and turning the "Enable 3G" switch to OFF before installing the ultrasn0w unlock.

How to: Jailbreak iPhone 4 on iOS 4.0.1:

Step 1: Unlocking requires that your phone is jailbroken on the latest firmware. Follow the complete guide posted here to jailbreak your iPhone 4 on iOS 4.0.1 / 4.0 using JailbreakMe 2.0.

How to: Unlock iPhone 4 (Any Baseband) on iOS 4.0.1:

Step 2: Once you are done with the jailbreak, you can now unlock your iPhone on any baseband using Ultrasn0w 1.0-1 from Cydia. To do this:
  • Start "Cydia" on your iPhone.
  • Touch on "Manage" tab on the bottom.
  • Now touch on "Sources" as seen in the screenshot below:
  • Touch on "Edit" and then on "Add". You will be prompted to enter a url source as seen in the screenshot below. Type "http://repo666.ultrasn0w.com" and touch on"Add Source" to add this repo if you haven't already.
Cydia will now automatically update your sources by following a series of automated steps.
  • After installation is completed. Search for "ultrasn0w 1.0-1" in Cydia and install this application. This app will automatically unlock your iPhone so that you can use it with any carrier.
Step 3: Now simply restart your iPhone and voila! you should now have a fully unlocked iPhone 4 !

Disclaimer: This guide is for testing & educational purposes only. I'm not responsible for any loss of important data or malfunctioning of your iPhone.

on Mar 06, 2011 | Apple iPhone Smartphone

Tip

Unlock Iphone 3GS & Iphone 4


Just go to Cydia Repo: repo666.ultrasn0w.com and install Ultrasn0w!


WLAN enabled

click cydia


7a9cef8.png



choose manage

& source

f44f12e.png


click edit and add


373a1a4.png


write a source http://repo666.ultrasn0w.com ( ultrasn0w zero not o )


bc71ee0.png


install ultrasn0w

4c4d287.png



confirm and wait to message retourn cydia insert your card sim and reboot

on Oct 11, 2010 | Cell Phones

1 Answer

How can unlock my i phone4


There are many ways to Unlock the I-Phone 4 like cydia,redsn0w,ultrasn0w etc...But you can use the best method among all method,that is Remote Unlocking service,You can get the I-Phone 4 remote UNLOCK service here Superunlockcodes and Unlock it,then you can use any GSM Network Sim card....You need to install latest version of I-tunes to unlock..Specify the Current network lock and Country to Unlock,Because some Network lock can be Unlocked from the Phone not all Network lock.....I have Unlocked my iphone from Brazil's Vivo network lock....

Jul 13, 2011 | Cell Phones

1 Answer

Iphone 4 from korea cannot activate here using sim card philippines what i should do


All you do it first follow the instructions to "Jailbreak" Your iphone 4.
Then you have to "unlock" it using ultrasn0w from cydia to allow it to operate on a network other than the intended networks here in the US.
most important is to check the "baseband" of your iphone as updated iphone 4 with newer firmware will not be able to be unlocked and therefore cannot be used in other countries without changing your baseband to the IPAD baseband of 6.15 which redsn0w will do. If you need more information please ask for clarification.
To find your baseband/firmware check Settings>General> about, google this information to see if they have an "unlock" for your baseband.

Apr 20, 2011 | Apple iPhone Smartphone

Tip

How to UNLOCK iPhone 4, 3GS, 3G or older - iOS 4.0.1 (all baseband)


(Updated April 2011)kid_ant_12.png

This guide will help you unock your iPhone using ultrasn0w 1.3 to let you use sim cards from other carriers worldwide.kid_ant_12.png
This is ONLY FOR JAILBROKEN iPhones. If yours is not yet jailbroken, CLICK HERE for guide on how to jailbreak.kid_ant_12.pngUltrasn0w 1.3 unlocks the following basebands for all iPhones:
  • 01.59.00 - iPhone 4, iOS 4.0, 4.0.1 & 4.0.2
  • 05.13.04 - iPhone 3G & 3GS, iOS 4.0, 4.0.1 & 4.0.2
  • 05.12.01 - iPhone 3G & 3GS, iOS 3.1.3
  • 05.11.07 - iPhone 3G & 3GS, iOS 3.1 & 3.1.2
  • 04.26.08 - iPhone 3G & 3GS, iOS 3.0
  • 06.15.00 - iPad baseband, iOS 3.2.2 (for patching iPhone 3G & 3GS BBs past iOS 4.0.2) (?)
  • and all older versions
NOTE: 05.14.02 / 02.10.04 baseband from iOS 4.1 and all newer versions, do not have any unlocking tool yet. You can follow me on twitter (kid_ant) or subscribe to my YouTube channel (kidantvideos) for updates.kid_ant_12.pngMake sure you are connected to a WiFi signal then follow these steps:
  1. Open Cydiakid_ant_12.png
  2. Go to Manage and tap on Sources, at the middle of the pagekid_ant_12.pngkid_ant_72.jpg 435ee48.jpgkid_ant_12.png
  3. Tap repo666.ultrasn0w.com (If the repo is not in your Sources read below)kid_ant_12.png
  4. Tap ultrasn0wkid_ant_12.pnge05ef2e.jpg cb81d74.jpgkid_ant_12.png
  5. Tap Install, then tap Confirmkid_ant_12.png
  6. Wait until the installation finisheskid_ant_12.png
  7. Tap Reboot Devicekid_ant_12.pngkid_ant_71.jpg 28b836b.jpgkid_ant_12.png
After the reboot, you should get a signal for your sim carrier, wherever you are in the world. That means your iPhone is now unlocked.kid_ant_12.png


kid_ant_12.png
If repo666.ultrasn0w.com is not in your Sources, do this first:
  • While in Cydia's Sources page, tap Edit (top-right corner)kid_ant_12.png
  • Tap Add (top-left corner)kid_ant_12.png
  • Type this on the text box: http://repo666.ultrasn0w.com (with the number zero NOT the letter "O" in ultrasn0w)kid_ant_12.png
  • Tap Add Sourcekid_ant_12.png
  • Tap Done (top-right corner)
Proceed to number 3 on the first part of this guide.

on Aug 09, 2010 | Apple iPhone Smartphone

2 Answers

Ii got a unlocked iphone had signal for the first hur or too now has none even tho it says orange has no bars and cant txt or call or recive


Reset the iPhone:
It has been observed that simply resetting the iPhone can resolve signal strength issues.
Reset network settings:
In some cases resetting the network settings has also helped so tap Settings, tap General, tap Reset, tap Reset Network Settings.
This will restart your iPhone and will also delete any stored Wi-Fi passwords as well as DNS settings and more.

Place your SIM card again:

If your iPhone’s SIM card is not placed properly, it has been observed that it can affect signal strength.
So a good idea would be to remove your iPhone's SIM card by pushing a straightened paper clip into the small hole on the top of the device to open the SIM tray, then check for debris inside the tray or SIM card slot, remove it by blowing into the slot or using compressed air and then placing the SIM card properly and then re-inserting the SIM tray.
The notion is that improper SIM contact can result in a weak signal, so the above procedure could help.
Attaching scotch tape to the SIM card:
This is indeed the most ingenious methods, it appears that attaching a small piece of scotch tape to the outer side of the iPhone’s SIM card (the side of the SIM card that does not have metal contacts) can result in a surprising boost again borrowing from the notion that improper SIM contact can result in a weak signal.

Jun 02, 2010 | Apple iPhone 3G Black Smartphone

3 Answers

Iphone won't recognize sim


Your phone must be jail broken and unlocked to use non AT&T sim card. Be sure you have correctly installed redsn0w and ultrasn0w unlocker. If you have recently updated your phone that will undo your jailbreak and unlock. You will need to reapply them for the version of your iPhone OS if they are available.

Aug 03, 2009 | Apple iPhone Smartphone

2 Answers

Iphone Unlocking Problem


if you are trying to upgrade to 3.0 you can not unlock a 3g under 3.0 firmware.

2g solution


3g solution

Jan 24, 2009 | Apple iPhone 3G

5 Answers

Iphone sim card problem


i put the sim card into iphone is dont work

Nov 23, 2007 | Apple iPhone Smartphone

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