Read Flash with UniSiemens:
The first step is the most complicated one, but I think with this tutorial you will be able to manage this. But please note your IMEI. You get this number, after you pressed *#06#, you'll need it later when you repair the wrong software.

Starting the Dongle Emulator:

In the subfolder DongleEmmu a program is located which must be started before UniSiemens is started. Start siemens emmulator.exe after that choose file - open and open the file emul.kpe. After sometime it will give an error but ignore it and dont close the program.

To run Universal Siemens:

Click on Usimload.exe, set the Com port and phone model. Now click Read flash button and after approx 1 second place your phone in the Sync Station. Now it is getting on your phone. When its 100% done then remove your phone from the Sync Station and save the bin file. It will be exact 6.00Mb file.

UniSiemens 99% Reading problem.
Sometimes the program stops at 99%. This isnt safe while uploading it to your SL45. It should be fully 6.00 Mb. To solve this problem you can try the following method.

In bios, set parallel port (yes parallel!) to EEP. Remove the parallel cable connection from the printer and close all running programs like Anti Viruses etc. BUT if this does not solves your problem then use another programs like, V_Klay for uploading/downloading EEPROM and Full flash files.