T720 doesn't work with USB

[Minh Lam]

Hi,

Here comes the problem:
my laptop cannot detect my T720 via the USB cable (SKN6311B),
but it does detect the phone via the serial cable (SKN6315A).

I have:
- Flash: T720_G_05.07.29R_flash.shx
- Flex: SE4567AXXB1125.hs

All that I want now is to push these stuff into the phone.

But the tricks here are:
- PST cannot detect the phone. (PST only works with USB cables, right?)
- Victor MSS works with both cables (USB & Serial), but I haven't got the equivalent flash file (*.vfl)

Much appreciated for your advices,

Email: lamquangminh97@yahoo.com

[Bert]

No, PST can work with the serial cable too. USB cable often get the problem for connect , that's normal

[Minh Lam]

Are you sure that we can use PST to flash the phone via a Serial cable?

I use P2K 6.7 GENERAL (cracked version :-)):
- It cannot detect the phone via USB cable (due to my phone failure, perhaps)
- It does detect the phone via Serial cable, but its buttons labeled: "Flash" and "Verify" are not enabled.

So what would you do in this case?

[Minh Lam]

I've just found the way to solve this problem out.

1. Use Victor to flash the phone with T720_G_05.05.015R_full_flash.vfl

2. Use PST to flash it with T720_G_05.07.29R_flash.shx

3. Use Victor to flex it with T720_Manufacturing_Flex_Model_GM5T0AA052.vhs

4. Use PST to flex it with SE4567AXXB1125.hs

Right before the flex SE4567AXXB1125.hs was forced into the phone, it (the phone) could be easily detected by any software via a USB cable. Afterwards, it couldn't be detected.
==> maybe this flex causes troubles.

[ok2000]

@ MINHLAM

contact me by ICQ. I can help you

[Minh Lam]

Thank you, guy.

But I don't have an ICQ account, I've only got a Yahoo's: lamquangminh97@yahoo.com.

Besides, I'm resident in Asian Pacific. --> Timing differences might be a problem for an online conversation. So drop me a message, why don't you?

BTW, have you got any links as regards phone's architecture/schematics, flash/flex, ...? Pls share, if possible.
I'm just curious about it. :-)

[Simonjax]

Minh Lam, may be your USB cable has problem, becau your phone can't detect with Victor or PST. If you use Win2k, XP . . .all of them are autor detect device. another case, you dont have usb_driver for T720

[Minh Lam]

A phone and a computer are sucessfully connected only if all of the 4 following conditions are satisfied:

1. The phone's hardware & firmware OK;
2. The computer's hardware & firmware OK;
3. The cable OK;
4. The phone's & the computer's COMPATIBLE;

At first, my phone could not be detected by my computer, while other phones could. I did jump to a conclusion that: the phone faulty. --> It was a totally wrong conclusion!

In fact, my phone's firmware is a special one. So it needs a special driver (different from USBMOT2000.INF; P2K.INF). I've installed that special driver into my computer. And now, it works well. :-)

In short, the problem occured because the item no. 4 above was not satisfied!

[Patrick]

Hi,

Can the Motorola SKN6311B cable help unlock T720? and what s/w do i need to unlock it ?

Thanks in advance