Flash-Upgradeable 56k V.90/K56flex Hardware Chipsets
Usage: To find other modems in the same chipset Family.
All drivers, downloads & info on this site are found via the modem.
Each Modem Manufacturers’ page also has external web-links, where available.
- This is the 1-MB-ROM version of it’s sister-RCVDL56ACF/SVD chipset. The quality & speed of connections are decided by the version of code in the Firmware:
Unlike many current modems, it is the Firmware which is the principal factor in deciding how good it’s connections will be. Drivers are important, but they cannot make bad Firmware good.
- v0.519D : V34 firmware.
- v1.000 -> v1.200 : K56Flex firmware.
- v2.000 -> v2.013A : transitional K56flex firmware; detects former-K56flex ISPs now using V.90 headends.
- v2.065 & later : V.90 firmware.
Take care with Firmware to make sure that it is only for this 1 MB ROM version (chip=R6761-21 [FCC] or R6761-22 [Global], EEPROM=INT0000). Later chipsets were issued with a 2 MB ROM (chip=R6771-21 [FCC] or R6771-22 [Global], EEPROM=RSS0262) & their Firmware cannot be used with these modems. The drivers, however, will usually work with any version.
(The following is specific with Origo modems & similar with other manufacturers:) The Firmware is offered in 14 different Country-versions + “Standard” (Taiwan, Canada, U.S.A , Japan, Mexico, Hong Kong). The results of an ati4 command will indicate the current Country version of the Firmware in the modem.
If you upgrade the modem Firmware it is important to match the Country-version to the type of modem that you have, as it has been produced in both FCC & “World” (Global) versions. Probably the easiest way to confirm this is to look at the main chip on the card. The ISA FCC version will show RCVDL56ACF/SP R6761-21 whilst the Global version will show RCVDL56ACFW/SP R6761-22. Only the Standard Firmware should be used with the FCC modem, whilst any country-Firmware can be used with the Global version. Well also provides a Standard-X3 Firmware for use in all other countries. This does not detect a dial-tone & should be used together with the special X3 drivers. What a palaver.
Driver Version (how to find)
- ati3 in More Info
- v2.083 Update wizard bug fixed.
v2.065->v2.076 See Zoltrix modems for info on firmware bugs & a work-around.
v2.000 -> v2.013A “The Wizard reports xxx is not a V.90 ISP”; it detects formerly-K56flex ISP’s now using V.90 connections. xxx will have been V.90 from the start & the wizard is wrong - go ahead & flash anyway.
Flash “hangs” at 91% Go and make a cup of tea - the flashing process must not be interrupted or the modem will be useless, permanently. This behaviour is normal & it normally goes to completion in a few minutes.
The old CIS USA site warned that older firmware needs flashing step-by-step, else damage will be caused. With CIS this means:
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- 14,268 modems
- 1,766 chipsets
- 2,264 chips
- 803 modem mfcs
- 121 comp/MB mfcs
- 1,706 comps/MBs/retail
- 144 chipset mfcs
- 23,328 external web links
- 141,472 hardware IDs
- 222,438 download files
Mfc: the company no longer makes/supplies modems and/or their chipsets, or has been taken over, or otherwise fallen into commercial Tophet.
Modem: it is no longer in production.
Chip, Chipset, Family or Family-Type: it is no longer produced at the Foundry.
In short, the item marked with a † has shuffled off this mortal coil, it has gone to meet it’s maker, to sing with the choir invisible; it is, not to put too fine a point upon it, an ex-modem (-Mfc, -Chip, -Chipset, -Family or -Type).
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These pages are a LAMP-development of the original Modem-Help, UK site (most of the old HTML pages still exist, but havn’t been updated for quite some time). That site, in it’s turn, was a transfer from the first html site on free-pages at Freeserve (sadly, now gone). The current format allows superb search facilities, customisation by Registered members, plus is quick ‘n’ easy to update.
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