problem with sandisk cruzer glide 3.0 16gb

16GB SanDisk Cruzer Glide 3.0

this disk is write protected

i tried all Solutions on the internet and nothing at all

i need firmware for this flash drive

Description: [S:]USB Mass Storage Device(SanDisk Cruzer Glide 3.0)
Device Type: Mass Storage Device

Protocal Version: USB 3.00
Current Speed: Super Speed
Max Current: 896mA

USB Device ID: VID = 0781 PID = 5597
Serial Number: 4C531001570916122565

Device Vendor: SanDisk
Device Name: Cruzer Glide 3.0
Device Revision: 0100

Manufacturer: SanDisk
Product Model: Cruzer Glide 3.0
Product Revision: 1.00

Controller Part-Number: Unknown
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i open the cover and found 2 chips
first chip

SanDisk
C536143371
SDTNSIAMA-016G
WPF8290044SS
CHINA
_____________________

second chip

SanDisk
20-82-00388-A0
S530-E6456600
SDC1
TAIWAN