Repair or Replace LMS 520

My LMS 520 was submerged and the display is now scrambled. Any opinion on whether is would be more cost effective to repair or just to replace? If I were to replace are Lowrance connections compatible from model to model? Does anyone suggest a certain model? Kind of budget limited. Thank you.

HDS units will utilize the same power and transducer as your
520.

If you have a red network you will have to power it separately and not through the power cable.

I’m not sure they will repair the 520’s any longer.

There is a used unit on Ebay right now, head unit only, buy it now for $205.00

I don’t know what repair cost might be but if I could repair for the same or less than used, I’d certainly repair mine and know I had a reconditioned unit.

I don’t think they will even repair that unit due to age.

that is a legacy unit, and they don’t repair them anymore. you can call lowrance and see if they will give you a discount on a new elite 7 or hds unit. because the 520 is trash, you can try and put the 520 in a bag of rice for a week or so and see if that does anything, it has worked on cell phones in the past. I would take the screws out and open the 520 up and submerge the whole thing in the rice. if it don’t work, all you are out is a bag of rice.

I would try and buy a head unit like mentioned. I love my old 520 and see zero reason to change/upgrade since its an awesome unit.

My 520 wouldnt read my chip for a winter,come spring I put my chip back in just to see if it worked again,it did and has ever since.Gotten a lot of use out of mine and I use it all four seasons.

x2 in them not repairing it any more… as far as I know and have been told they wont touch anything pre “hds” anymore… I think is bs, and doesn’t help lowrance current standing against hummingbird!!

The 520c is a great unit.
But I’ll bet Lowrance will not repair it.
They were however offering credit towards HDS units a few years ago for units that failed.
As others have said the HDS units will “plug in” and replace your 520c.
Or you could look around for another used 520c.