[HTC Incredible S] jules290496:
I got this in my terminal:

Waiting for device to connect

adb server is out of date. killing...

* daemon started successfully *

Device found

Is the device rooted?

y OR n:n

Waiting for device to connect

adb server is out of date. killing...

* daemon started successfully *

Device found

Pushing tacoroot

adb server is out of date. killing...

* daemon started successfully *

351 KB/s (14475 bytes in 0.040s)

Correcting permissions

adb server is out of date. killing...

* daemon started successfully *

tacoroot rebooting phone to recovery

adb server is out of date. killing...

* daemon started successfully *

TacoRoot: HTC Edition v1

By Justin Case (jcase)

Presented by TeamAndIRC, RootzWiki and AndroidPolice

With great assistance from Reid Holland (Erishasnobattery)

----------

TacoRoot: HTC Edition v1 is based on a vulnerability independently discovered by

both Justin Case and Dan Rosenberg (Rosenberg fist). I believe unrevoked and

AlpahRev were also aware of it.

----------

Usage:

--recovery : For this exploit to work, you must have booted recovery at least on

ce after your last factory reset.

--setup : Setup the phone for root, must be done before --root.

--root : Root the phone.

--undo : Remove TacoRoot.

----------

Rebooting into recovery, please press Volume+, Volume- and Power at the same tim

e, and reboot the system.

rm failed for /data/data/recovery/log, No such file or directory

link failed No such file or directory

Waiting for device to connect

Device found

tacoroot starting adbD as root

TacoRoot: HTC Edition v1

By Justin Case (jcase)

Presented by TeamAndIRC, RootzWiki and AndroidPolice

With great assistance from Reid Holland (Erishasnobattery)

----------

TacoRoot: HTC Edition v1 is based on a vulnerability independently discovered by

both Justin Case and Dan Rosenberg (Rosenberg fist). I believe unrevoked and

AlpahRev were also aware of it.

----------

Usage:

--recovery : For this exploit to work, you must have booted recovery at least on

ce after your last factory reset.

--setup : Setup the phone for root, must be done before --root.

--root : Root the phone.

--undo : Remove TacoRoot.

----------

Rebooting into root.

cannot create /data/local.prop: permission denied

Waiting for device to connect

Device found

Pushing misc_version

1006 KB/s (367096 bytes in 0.356s)

Correcting permissions

Downgrading main version

--set_version set. VERSION will be changed to: 2.00.000.0

Patching and backing up misc partition...

Error opening input file.

Do you need to create a goldcard?

y OR n:n

Undoing tacoroot (if applied)

TacoRoot: HTC Edition v1

By Justin Case (jcase)

Presented by TeamAndIRC, RootzWiki and AndroidPolice

With great assistance from Reid Holland (Erishasnobattery)

----------

TacoRoot: HTC Edition v1 is based on a vulnerability independently discovered by

both Justin Case and Dan Rosenberg (Rosenberg fist). I believe unrevoked and

AlpahRev were also aware of it.

----------

Usage:

--recovery : For this exploit to work, you must have booted recovery at least on

ce after your last factory reset.

--setup : Setup the phone for root, must be done before --root.

--root : Root the phone.

--undo : Remove TacoRoot.

----------

rm failed for /data/local.prop, No such file or directory

Root removed, rebooting

Waiting for device to connect

error: protocol fault (no status)

Device found

Cleaning temp files

* daemon not running. starting it now *

* daemon started successfully *

Checking version-main

< waiting for device >

version-main: 3.11.405.2

finished. total time: 0.002s

If the version-main returns 2.00.000.0 you should be

able to run the RUU downgrade. If it does not, answer n to the

unlocked bootloader prompt no matter what.

Do you have an unlocked bootloader from htcdev.com?

y OR n:y

...

(bootloader) Lock successfully...

FAILED (status read failed (Too many links))

finished. total time: 0.297s

Note: run the RUU in fastboot mode

If all steps were completed without error,

you should be ready to run the RUU downgrade

Appuyez sur une touche pour continuer...

And when i try to flash the RUU for downgrad, it say : The update utility can't update the android phone.

Try to obtain the correct rom update utility and try again ( it's translated from french)