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Joe G

[help] hard reset & firmware forced upgrade for SA Explorer 4250

Is there a way to hard reset and force a firmware update on a Scientific Atlanta Explorer 4250HD cable box? We have it through Cablevision/IO.

I have very sluggish performace with menu features and such. In the diagnostic menu, it says its getting a 15dBmV signal, which I think is too hot.

I have replaced the box twice. I have also replaced the cable, the splitter that cable connects to, the cable the connects the splitter to the prior one, and the prior splitter. Keep in mind, the first splitter goes also to a cable modem for cable and voice, which gets perfect signal. My brother's room, which is on my same splitter, also has no problems.

I'm thinking maybe a reset might make some difference.

Piscataway, NJ

Re: [help] hard reset & firmware forced upgrade for SA Explorer

First of all, the boxes are slow as molasses, almost to the point of unusable for anything other than watching TV. It's not just your box, its the customized software Cablevision puts on the boxes. Secondly, if you think you're having signal issues, rebooting the boxes isn't going to fix it, but if it makes you feel any better you can reboot it by pressing the following three buttons at the same time: Vol - Vol + and Info.


Lindenhurst, NY
reply to Joe G
Joe g are you having opt online speed issues also ?


Ronkonkoma, NY
·Optimum Online

1 edit
reply to Joe G
You have 1 2 way splitter, then 2 additional splitters on 1 side for TVs, right? I'd make sure none of the splitters are causing too much loss (either check the levels and make sure they're not losing more than 3.5 dB or 7.0 dB as appropriate). If the splitters are all good, you may need a signal amplifier to be added on the TV side of the split since the signals into the TV are poor.

edit: Correction, if the receive signal is too high, then another splitter may actually help (check the transmit and carrier/noise ratio on the box too). Though it would seem strange to have signal low, and then get higher after a splitter unless it was defective.

Joe G
My brother's room next door is on the same 2 way splitter as me. He gets a 7dBmV signal and good performance. I just bought a new cable. Our internet/phone modem is fine. Speedtest gives me 14000k download and 2000k upload on the clifton, NJ server.

slow ftp
You have a bad box, return or call for an appt.

Joe G
reply to Joe G
I'll try, but that would make it my third box


Brooklyn, NY
reply to Joe G
where did you get the idea that:
1)there is a firmware upgrade
2)your box needs a firmware upgrade
3)if there is a firmware upgrade that it will make any difference?

not every problem is solved by upgrading. get out of betatester/"newest is the best" mentality.

Beacon, NY
reply to Joe G
Are you thinking the HD box is slow because its slow compared to someone's SD box? The HD boxes are pretty much slower than the standard definition boxes.

Joe G
reply to Joe G
I'm comparing to other HD in the house

IF there is a firmware update, what would it hurt to install it?

I do not have "newest is best" mentality. If I could have, I would have bought a 36" CRT SD television instead of this 42" flat panel. Standard def channels look terrible on it (which is all I usually watch). Unfortunately, 4:3 big screen CRTs are rare to come by.