Category Archives: iPhone

Barcode Scanner for iPhone – RedLaser

Ever wanted a barcode scanner of your own to scan products? Now you can with the app RedLaser. Originally available only for jailbroken iPhones, and it’s free. You can get it through the App store now, but you have to pay $1.99 for it.

This is a demo video from the official RedLaser web site. I tested on my iPhone 3G and I am quite happy with the results.

When you first run the application, you see this screen.


Tap on the bolt icon on the bottom to enter the scan mode.


Now you have to align the barcode edge with arrows. When RedLaser detects a valid barcode, the arrows turn green. You have to hold your iPhone still for a few seconds.


When the scanning is done, it searches the product through Amazon and Google. One nice feature is that you can email the scanned products list which makes it more useful.

There are a lot of negative reviews about the application. Most negative reviews are about not getting the scanning right. I only had a few bad scanning in my tests. If you have troubles doing this, I suggest you do it in a well-lit environment and make sure the barcode is on a flat surface and there is no glare when you see it through the view finder.

Jailbreaking iPhone 3GS Tool Available Now

While Dev-Team is waiting for iPhone 3.1 firmware to release its iPhone jailbreaking tool, geohot has released a tool ahead of them. As of this writing, the tool is available for Windows (not Windows 7). A Mac version is coming soon.

You need the latest iTunes installed on your computer. The download web site is  Click on the Windows logo to download purplera1n.exe . Run purplera1n.exe on your Windows computer to jailbreak your iPhone 3GS. After iPhone reboots, run Freeze on your iPhone.

iPhone OS 3.0 USB Tethering Requires iTunes 8.2

One new feature of iPhone OS 3.0 is the ability to do tethering without additional software. Unfortunately, this feature is not enabled in US. For those people whose iPhone carriers that support it, here is a tip. If you want to use tethering via USB, you need to install iTunes 8.2 on the computer. iTunes 8.2 provides necessary driver for your iPhone to act as a Mobile Device Ethernet. Otherwise, the phone will be recognized as a camera.

Jailbreaking iPhone 3.0

I really like some of the jailbroken applications like PDANet and Cycorder. When Apple released iPhone 3.0 firmware last week, I thought I was going to wait for a while until the jailbreaking utilities are ready for the new firmware.

It took only a few days for the iPhone Dev team to publish the jailbreaking tools. The new recommended tool is now readsn0w. Note that it works with original iPhone, iPod Touch, iPod Touch 2G and iPhone 3G. It can jailbreak the supported devices, but it can only unlock the original iPhone, not iPhone 3G. If you have a locked iPhone 3G and you need to unlock it for other wireless carrier, you have to wait for a while.

Here is the link to the download page for redsn0w. The steps are really easy. You just need to use iTunes to upgrade firmware of your iPhone. Then, you can use redsn0w to jailbreak it. iClarifiled has tutorials for the procedures if you like to see some screenshots and the locations for the firmware download.

redsn0w Windows Tutorial

redsn0w Mac Tutorial

I tried it last Saturday and found the steps easy to follow. The only problem I had is to put the iPhone to DFU mode. You have to follow the instructions precisely. I suggest you read the tutorial several time before you attempt it.

After my iPhone was jailbroken, Cydia crashed several time when I tried it. After several tries, Cydia seemed to behave normally.

iPhone Software 3.0 Tutorial

Apple published iPhone OS 3.0 ahead of the iPhone 3G S release. The notable new features included are:

  • Cut, copy & paste
  • Landscape keyboard
  • MMS
  • Spotlight search
  • Voice Memos
  • Improved calendar
  • Buy movies, TV shows and audiobooks directly from iPhone
  • Enhanced stocks app
  • Safari improvements
  • Internet tethering (Not available in US)
  • Stereo Bluetooth
  • Automatic Wi-Fi login
  • Sync notes
  • Parent controls
  • iTunes store account
  • YouTube login
  • Shake to shuffle
  • New languagues
  • MobileMe find my iPhone and remote wipe
  • Run the latest apps

iSmashPhone has a great tutorial about the new features. Here is the link.

MacLife also has a similar guide, less complete but still good. Follow this link to the article.

Do you know any other good guides about iPhone 3.0? Tell us in the comments section.