How do I fix Leupold rangefinder not giving distance?

Contact Leupold Support direct. We are Fixya, we aren't they and we can't give feedback on an issue like this unfortunately.

https://www.leupold.com/shop/rangefinders/series/rx

It may be a laser issue and needs calibration or repair.

https://www.bhphotovideo.com/c/product/1059069-REG/leupold_119360_rx_1200i_tbr_with_dna.html

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Replace the battery

Contact Support

https://www.leupold.com/support/service/return-warranty-services

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Rangefinder essential things for hunting. There are many rangefinders are available on the market. Here I give 3 best range finder for hunting lovers.
Sig Sauer Kilo 2000
The Sig Sauer Range finder yields 7 x magnifications which are the best thing any hunter would want. It allows you to focus even on the smallest target possible and never lets you to miss a shot. The 1000+ yards range works efficiently.
The Sig focuses on maintaining a high standard in its material. The solid body of the rangefinder is built with magnesium with soft rubber adjusted to the top and bottom so that you do not lose the grip. The materials used are lightweight and durable also.
Leupold RX-650 Laser Rangefinder
The Leupold RX-650 Rangefinder is Lightweight, compact and weatherproof that is flexible to carry and protect the display when you need to go for hunting. Keep eyes on our Leupold Laser Rangefinder review, and learn quickly why you should spend some time to assess the usefulness of the product.
Bushnell 202442 The Truth Rangefinder
Bushnell 202442 the truth rangefinder is a very portable and convenient product. It has been made in such a way so that you can take it quickly for shooting or hunting. The rangefinder has been made with quality materials and tested extensively. The materials used are well-built and durable without any doubt.

Simmons Laser LRF 600 Rangefinder

Treestand bowhunters are known to be the people with particularly discerning preferences when it comes to shooting. If you are one of them, you surely are proud to make an accurate hit at extreme angle.
So, you know how important the difference of a few yards between the true horizontal distance and line of sight distance is when a successful hit is the only thing you want. Well, forget all these subtleties because Simmons Laser Rangefinder LRF 600 is there to help.
Alongside the reticle and battery level indicator, this budget-friendly rangefinder might seem a compromising model due to having no rifle, or bow, or target priority icons. After all, this model is ideal for shooters and hunters.
Important Highlights

• Accuracy: +/- 1 yard
• Range: 10-600 yards
• Monocular Optical System with a fixed focus
• 4x magnification
• Liquid crystal display
• Line of sight measurement
• Tilt Intelligence (For displaying True Horizontal Distance)

Of hand, I would have you check to see if the sensor is covered by dust or dirt or condensation.

The digital display went bad on that one digit area.

This problem is caused by the 'step' inside the battery cover which prohibits the tip of the battery contacting the nipple inside the cover. I fitted a thin piece of aluminium strip (20thou) and the rangefinder works perfectly now. Note that most new CR2 batteries have higher sides which shields the tip too effectively - check it out.

I had the same problem, rangefinder would work only sometimes and only at short distances. Called customer support and was ready to send it in. Tech guy told me to turn off "First Target" ( or "last target") and turn on"LOS" (line of sight). Range finder now works perfectly at all distances. Apparently the first target feature doesnt work properly.