General Description The PHISON!s PS2251-33 micro-controller supports USB 2. DataSheet4U.com/ ² Build-In NAND Flash Memory Interface — Build-in. 0 core power (1.3V IO power 1. High active.1. Module Manual WT9501M03. The PHISON’s PS2251-33 micro-controller supports USB 2.0 & 1.1 and interface to NAND Flash Memory. This chip is specially designed for portable storage device. VCCK Core Power Supply Core Area 1.62 1.8 1.98 V VCC3IO Power Supply 3.3V I/O 3.0 3.3 3.6 V Temp Junction Temperature 0 25 115 ℃ Vt Switching threshold LVTTL 1.5 V Vt- Schmitt.

Not work on my pendrive, those with features: Description: [F:]Dispositivo de almacenamiento USB(Kingston DataTraveler 3.0) Device Type: Mass Storage Device Protocal Version: USB 3.00 Current Speed: Super Speed Max Current: 896mA USB Device ID: VID = 0951 PID = 1666 Serial Number: 60A44C3FAFD5B0 Device Vendor: Kingston Device Name: DataTraveler 3.0 Device Revision: 0100 Manufacturer: Kingston Product Model: DataTraveler 3.0 Product Revision: PMAP Controller Vendor: Phison Controller Part-Number: PS2251-07(PS2307) - F/W 01.02.53 [2014-05-12] Flash ID code: 983AA892 - Toshiba [TLC]. Description: [M:]USB Mass Storage Device(Kingston DataTraveler 3.0) Device Type: Mass Storage Device Protocal Version: USB 2.10. Greetings Ashraaf, It would be nice if you pleas could help me to fix my usb memory, the features from Chip genius 4.0 are as follow, I´ve tried to fix it with UPtools but not work. Thanks and congratulations for your great Blog. Description: [D:]Dispositivo de almacenamiento USB(USB DISK 3.0 Pro) Device Type: Mass Storage Device Protocal Version: USB 2.10.

Description: [E:]USB Mass Storage Device(silicon-power) Device Type: Mass Storage Device Protocal Version: USB 3.10 Current Speed: Super Speed Max Current: 504mA USB Device ID: VID = 13FE PID = 5500 Serial Number: 7F006712A718E301 Device Name: silicon-power Device Revision: 0100 Product Model: silicon-power Product Revision: DL07 Chip Vendor: Phison Chip Part-Number: PS2251-07(PS2307) - F/W 05.02.53 [2016-03-18] Flash ID Code: 983A98A3 - Toshiba [TLC] The TOOL works great. It's just that, my 32GB became 28GB now. So I've lost 4GB. But the thing is it's on SUPER SPEED which is so freaking great. Fast transfer. The tools you guys see on this web works really fine.

You just have to find the right tool for you USB. Dead USB can be revive with the tools here. Find the right tool and make sure you guys have a better understanding on how to run those tools before starting to flash firmware. Coz it will brick the chip for life. RIP USB when it happens. Thanks again to those who created and share ideas on how to fix USB. Specially DISK WRITE PROTECT.

Asalamualaikum wr.wb i've got a dead kingston 64 gb with following specs: Description: [O:]USB Mass Storage Device(Kingston DataTraveler 3.0) Device Type: Mass Storage Device Protocal Version: USB 2.10. Hi, I faced the same problem. I have a 32GB OTG micro drive (manufac: Verbatim) as when plugging in windows automatically starts to install the drivers for 'PRAM 2307 USB device'. It doesn’t have any icon appeared in my computer and in Disk Management 'Removable Disk' shows no information beside it. How can I get windows to recognize the drive? Please email to me at colin_lim85@yahoo.com.

Please refer below for the details: Computer model: Aspire 5740G Maker: Acer OS: Windows 7 professional service pack 1 Device Name: +[D:]+Generic USB Hub(2307 PRAM USB Device) PnP Device ID: VID = 8087 PID = 0020 Serial Number: 5&&257B0F1D&&0&&1 Revision: 1.00 Device Type: Standard USB device - USB2.0 High-Speed Chip Vendor: (No match record) Chip Part-Number: (No match record) Product Vendor: 2307 Product Model: PRAM Tools on Web: (N/A). Hay, for All. Also I have a DTDUO3/32GB Kingston USB3.0 OTG ( 04715-424.A00LF 5V TH:7661293 THAILAND ) with Chip Vendor: PS2251-07(PS2307). I’m facing now with similar situations as you CHUNG (NO Icons appear on My Computer & Disk Management > No info on ‘”Removable Disk” ) My mistake whose I format with Low Level Format Utility from Phison PS2251-07 USB recovery Tools > preformat application. From the moment of finished format I face with situation written above. Now I’m afraid to don’t brick the CIP of OTG. If there is someone to help in order to revive that OTG information’s are highly appreciated.