If the bootloader of the s1300 is somehow erased, you have two options to recover it.

The first option requires an extra tool, a flash programmer, and also requires opening the box. see the attachment:

s1300 bricked guide.docx

This page describes how to recover an S1300 using minimal hardware tools with option 2.

Tools needed:

• QPST software
• QUD driver
• Type A-A USB cable
• Windows PC

Preparation:

• Download and install:

QPST software

https://qpsttool.com/qpst-tool-v2-7-496

and QUD driver:

https://androidfilehost.com/?fid=2188818919693754370

• Connect the S1300 to the PC using a USB type A-A cable.

Plug in the power cable to S1300. The device manager will show the device QDLoader 9008.