I got a Samsung ZM-60 from T-Mobile (incl. SIMlock). The first shock came after switching it on for the first time: Everything was in the T-Mobile magenta color. After some research, I found out, that it’s originally a SGH-Z300
.
Firmware flashing
Instructions on how to flash a new firmware are on handy-faq.de. There also was a nice collection of firmware images on anvi.it, but seems to be down for now.
The best firmware seems to be the Z300AIEK1
, since it is only slightly branded by TIM (an Italian provider?) and contains everything the original Samsung-Firmwares do.
You can use the supplied cable to flash the phone.
- run the Downloader Z300-Z500
- find your desired firmware file
- power off the phone, hold the 9 key and power it on so that the outer display shows “Download” on red background
- initiate the transfer
The flashing takes about 12 minutes and after that, you have the original Z300 Samsung theme.
SIMlock
To remove the SIMlock, there’s a manual at gsmhosting.com. You need the Qualcomm Unlocker and a PC with a COM1:
port where you need to short the Pins #2 and #3. Then it’s a thing of 20 seconds to get rid of the SIMlock.
Downloading jar files
The phone accepts .jar
files from any server if it sends the content type application/java-archive
instead of application/octet-stream
. This is easily accomplished by adding a .htaccess
file with the line
AddType application/java-archive .jar
to the directory where the .jar
files are on your server.
Phone identification
The phone sends the following User-Agent to websites:
SGH-Z300 SHP/VPP/R5 SMB3.1 SMM-MMS/1.2.0 profile/MIDP-2.0